Every biomarker, explained in plain English.

Your heart rate is how many times your heart beats per minute. A normal resting heart rate is 60-100 bpm, athletes often have lower rates (40-60 bpm), which is a sign of great fitness. If your resting rate is consistently above 100 or below 40, it's worth seeing a doctor.

Respiratory rate is how many breaths you take per minute. A healthy adult typically breathes 12-20 times per minute at rest. If your rate is consistently above 20 while relaxed, it could signal stress, anxiety, or an underlying health issue.

Estimates how much oxygen your red blood cells are carrying. A wellness estimate, not a medical pulse oximeter.

The top number in a blood pressure reading, the force on your artery walls when your heart beats. A wellness estimate, not a validated cuff. Not a diagnosis.

The bottom number in a blood pressure reading, the pressure in your arteries between heartbeats when your heart is resting. A wellness estimate, not a validated cuff. Not a diagnosis.

Mean arterial pressure (MAP) is the average pressure in your arteries during one complete heartbeat cycle. A healthy MAP typically falls between 70 and 100 mmHg. Values outside this range can indicate your organs aren't getting the right amount of blood flow.

Pulse pressure is the difference between your systolic (top) and diastolic (bottom) blood pressure numbers. A normal pulse pressure is around 40 mmHg. If it's consistently above 60, it may signal stiffening arteries, which increases heart disease risk.

Resting heart rate classification tells you where your resting heart rate falls compared to healthy ranges for your age. Categories range from "athletic" (very fit) to "poor" (may need attention). A poor classification doesn't mean you're unhealthy, it's a starting point for improvement.

Blood perfusion shows how well blood is flowing to different areas of your face. Good perfusion means your body is efficiently delivering oxygen and nutrients through your smallest blood vessels. Uneven or low perfusion can suggest circulation issues or high stress levels.

Respiratory regularity measures how consistent and rhythmic your breathing pattern is. A high regularity score means your breathing is smooth and steady, which is a sign of good health and low stress. Irregular breathing can be linked to anxiety, sleep issues, or respiratory problems.

SDNN measures the overall variation in the time between your heartbeats, a key indicator of heart health. Higher values (above 100 ms) generally mean your heart is adaptable and resilient. Low SDNN (below 50 ms) may signal chronic stress, fatigue, or cardiovascular risk.

RMSSD measures short-term changes in your heartbeat timing and reflects how well your body can relax and recover. Higher values indicate strong recovery ability and a healthy nervous system. Low RMSSD may mean your body is under stress or not recovering well.

pNN50 tells you what percentage of heartbeat intervals differ from each other by more than 50 milliseconds. A higher percentage means your heart rhythm has healthy variation, a good sign. Very low pNN50 values may suggest your body is in a stressed or fatigued state.

SDSD measures the variation in the differences between consecutive heartbeats, similar to RMSSD. It reflects your body's ability to shift between activity and relaxation. Low values may indicate your nervous system isn't switching gears effectively.

Mean NN interval is the average time between your heartbeats, measured in milliseconds. A longer interval means a slower, often healthier resting heart rate. Very short intervals (fast heart rate) at rest can signal stress, dehydration, or cardiovascular concern.

LF power reflects a mix of your sympathetic ("fight or flight") and parasympathetic ("rest and digest") nervous system activity. Elevated LF power can indicate stress or tension. It's most useful when compared to your HF power to understand your body's stress balance.

HF power reflects the activity of your parasympathetic nervous system, the part that helps you relax and recover. Higher HF power is generally a sign of good recovery, low stress, and strong heart health. Low HF power may mean your body is stuck in "stress mode."

VLF power reflects very slow rhythms in your heartbeat, linked to hormonal regulation, temperature control, and long-term stress patterns. Low VLF power has been associated with inflammation and poor overall health outcomes. This marker responds to lifestyle changes over weeks and months.

Total power is the sum of all heart rate variability frequencies, it's an overall measure of how adaptable your heart is. Higher total power generally reflects better cardiovascular fitness and stress resilience. A significant drop in total power can signal overtraining, illness, or chronic stress.

LF/HF ratio compares your stress ("fight or flight") and relaxation ("rest and digest") nervous system activity. A balanced ratio (around 1.0-2.0) suggests your body switches smoothly between effort and recovery. A high ratio may mean you're spending too much time in stress mode.

SD1 measures beat-to-beat (short-term) variation in your heart rhythm using a Poincare plot analysis. Higher SD1 values indicate strong parasympathetic activity and good recovery capacity. Low values may reflect stress or poor recovery.

SD2 measures longer-term patterns in your heart rhythm variation. It reflects the combined influence of both branches of your nervous system on your heart. Low SD2 values may suggest reduced cardiovascular adaptability.

Approximate entropy measures how complex and unpredictable your heart rhythm is. A healthy heart has a certain level of complexity, like a jazz musician improvising rather than playing the same note. Very low or very high entropy can suggest heart health concerns.

Sample entropy is a refined measure of how unpredictable your heartbeat patterns are. Like approximate entropy, moderate complexity is a good sign, it means your heart adapts well to changing demands. Unusually low values may indicate a rigid cardiovascular system.

DFA Alpha-1 measures the fractal-like patterns in your heartbeat over short periods. A healthy value is around 1.0, much higher or lower can suggest your heart's regulatory system is off balance. This is a sensitive marker that picks up early signs of stress or overtraining.

Triangular index is another way to measure your overall heart rate variability using the shape of your heartbeat interval distribution. Higher values indicate greater variability, which is generally a sign of heart health. Low values may reflect reduced cardiovascular fitness or chronic stress.

Atrial fibrillation probability estimates the likelihood that your heart rhythm shows signs of AFib, an irregular heartbeat. A low probability is normal and expected. If the probability is elevated, it doesn't mean you have AFib, but it's worth discussing with a doctor. An educational estimate, not a diagnosis.

AFib risk category classifies your estimated risk of atrial fibrillation, from low to high. Most people fall in the low category. Being in a higher category means it's especially important to monitor your heart health regularly. An educational estimate, not a diagnosis.

Pulse irregularity index measures how irregular the spacing between your heartbeats is. Some variation is completely normal and healthy. However, a high irregularity index could point to premature beats or other rhythm issues worth checking out.

PAC frequency estimates how often premature atrial contractions (extra early heartbeats from the upper heart) occur. Occasional PACs are very common and usually harmless. Frequent PACs, especially if you feel fluttering or skipped beats, may warrant a check-up.

PVC frequency estimates how often premature ventricular contractions (extra beats from the lower heart) occur. Like PACs, occasional PVCs are common and usually harmless. If they're frequent or you feel a "thudding" sensation in your chest, talk to your doctor.

IBI entropy measures the randomness in the intervals between your heartbeats. A moderate level of entropy is healthy, it means your heart is responsive to your body's needs. Extremely low or high entropy can indicate a nervous system imbalance.

Vascular age estimates the age of your blood vessels based on their stiffness and function, which can differ from your actual age. Having a vascular age lower than your real age is a great sign. A vascular age much higher than your real age suggests accelerated wear on your arteries.

Pulse wave velocity measures how fast blood pressure waves travel through your arteries. Faster waves usually mean stiffer arteries, which is a risk factor for heart disease. Lower PWV values are healthier and indicate more flexible, youthful blood vessels.

Augmentation index measures how much the reflected pressure wave from your arteries adds to the peak blood pressure. A higher value suggests stiffer arteries and greater strain on your heart. Lower values indicate healthier, more elastic blood vessels.

Reflection index measures how strongly pressure waves bounce back from the smaller blood vessels in your body. A high reflection index can mean increased resistance in your blood vessels, putting more strain on your heart.

Stiffness index provides an overall assessment of how stiff your large arteries are. Stiffer arteries make your heart work harder and increase the risk of cardiovascular problems over time. This value tends to increase with age but can be improved with lifestyle changes.

10-year CVD risk score estimates your percentage chance of experiencing a cardiovascular event (like a heart attack or stroke) in the next 10 years. A low score (under 10%) is reassuring, while higher scores mean it's time to take action. An educational estimate. Not a diagnosis.

Estimates your relative risk of a heart attack based on your cardiovascular markers. A lower level is ideal. An educational estimate, not a diagnosis or prediction.

Estimates your relative risk of a stroke based on your cardiovascular indicators. An educational estimate, not a diagnosis or prediction.

Cardiac output estimates how much blood your heart pumps per minute. A healthy resting cardiac output is typically 4-8 liters per minute. This reflects how efficiently your heart is working to supply your body with oxygen-rich blood.

Stroke volume estimates how much blood your heart pumps with each individual beat. A healthy stroke volume is typically 60-100 mL per beat. A higher stroke volume means your heart is working efficiently.

Venous oxygen saturation (SvO2) estimates the oxygen level in your blood as it returns to the heart after delivering oxygen to your body. Normal values are around 60-80%. Very low values may suggest your body is working extra hard or not getting enough oxygen supply.

SD1/SD2 ratio compares short-term and long-term heart rhythm variation to show how balanced your nervous system is. A healthy ratio means your body transitions smoothly between alertness and relaxation. An imbalanced ratio can signal chronic stress or poor recovery.

Baevsky stress index is a well-established measure of how much physiological stress your body is under, based on your heart rhythm patterns. Lower values indicate a relaxed state, while high values suggest your body is under significant strain.

Composite stress score combines multiple heart rhythm and nervous system signals into a single stress rating. It gives a more complete picture than any single marker alone. High scores sustained over time can contribute to health problems like high blood pressure and weakened immunity.

Stress level category places your overall stress into a simple category, from low to very high, based on your physiological signals. Being in a higher category occasionally (like during a busy week) is normal. Staying in a high category long-term is a signal to make changes.

SNS activity index measures how active your sympathetic nervous system is, the "fight or flight" branch that revs you up. Some activation is necessary and healthy, but chronically high SNS activity is linked to anxiety, high blood pressure, and burnout.

PNS activity index measures how active your parasympathetic nervous system is, the "rest and digest" branch that helps you recover. Higher PNS activity means better relaxation and recovery. Low PNS activity may mean your body isn't getting enough downtime.

ANS balance index shows whether your autonomic nervous system is tilted toward stress (sympathetic) or recovery (parasympathetic). A balanced reading means your body switches smoothly between alertness and rest.

Respiratory sinus arrhythmia (RSA) measures a natural, healthy phenomenon where your heart rate speeds up slightly when you inhale and slows down when you exhale. A stronger RSA is a sign of good heart-lung coordination and a healthy nervous system.

Baroreflex sensitivity measures how quickly your body adjusts your heart rate in response to blood pressure changes, like when you stand up suddenly. Higher sensitivity means your body is agile and responsive.

Acute vs chronic stress classification tells you whether your body's stress signals look like a temporary (acute) response or a longer-term (chronic) pattern. Acute stress, like from a deadline or workout, is normal and fades quickly.

Facial tension score measures visible muscle tension in your face, which is a surprisingly reliable indicator of overall stress. High tension, tightened jaw, furrowed brow, clenched muscles, often reflects underlying stress you may not even notice.

Hemoglobin estimate gives an approximation of your hemoglobin level, the protein in red blood cells that carries oxygen. Normal ranges are roughly 12-16 g/dL for women and 13.5-17.5 g/dL for men. Low hemoglobin can cause fatigue, weakness, and shortness of breath.

HbA1c risk estimate approximates your average blood sugar levels over the past 2-3 months. It's a key indicator for diabetes risk, normal is below 5.7%, pre-diabetic is 5.7-6.4%, and diabetic is 6.5% or higher. An emerging estimate, not a diagnosis.

Blood glucose estimate approximates your current blood sugar level. Normal fasting glucose is 70-100 mg/dL. Consistently high blood sugar can damage blood vessels, nerves, and organs over time, even before symptoms appear. An emerging estimate, not a glucose meter or diagnosis.

Glucose risk category classifies your estimated blood sugar levels into a risk level, from normal to high risk. Being in an elevated category doesn't mean you have diabetes, but it's a signal to pay closer attention to your diet and activity levels. An emerging estimate, not a diagnosis.

Total cholesterol risk estimates whether your cholesterol levels may be putting you at elevated cardiovascular risk. Healthy total cholesterol is generally under 200 mg/dL. High cholesterol builds up silently in your arteries with no symptoms until serious problems occur. An emerging estimate, not a lab panel.

Triglyceride risk estimates whether your triglyceride levels, a type of fat in your blood, may be elevated. Normal triglycerides are under 150 mg/dL. High triglycerides often go hand-in-hand with high sugar intake, excess weight, and low physical activity. An emerging estimate, not a lab panel.

LDL/HDL Risk Ratio compares your "bad" cholesterol to your "good" cholesterol, giving a snapshot of your heart disease risk. A higher ratio means more bad cholesterol relative to good, which can lead to plaque buildup in your arteries. Watch for values above 3.5. An emerging estimate, not a lab panel.

Estimates your likelihood of a cluster of conditions: high blood sugar, excess belly fat, abnormal cholesterol, and high blood pressure. An emerging estimate, not a diagnosis.

Anemia risk flag checks for signs that your blood may not be carrying enough oxygen, often due to low iron or other nutrient deficiencies. Watch for persistent fatigue, pale skin, dizziness, or feeling short of breath during light activity. A wellness cue, not a diagnosis.

Hydration index estimates how well-hydrated your body is based on subtle skin and facial cues. Even mild dehydration can cause headaches, brain fog, and fatigue before you feel thirsty.

VO2max estimate measures your body's maximum ability to use oxygen during exercise, it's one of the best indicators of overall cardiovascular fitness. A higher number means your heart and lungs work more efficiently.

Cardiac fitness age tells you how old your heart "acts" compared to your actual age. If your cardiac age is higher than your real age, your heart may be working harder than it should. A gap of more than 5 years is worth paying attention to.

Recovery score reflects how well your body has bounced back from recent physical or mental stress. A low score suggests your body is still working hard to repair and recharge. Watch for consistently low scores, which may mean you're overtraining or not sleeping enough.

Training readiness indicates whether your body is primed for a hard workout or would benefit from a lighter day. If this score is low, pushing hard could increase your injury risk.

Resting HR fitness classification rates your resting heart rate against established fitness benchmarks. A lower resting heart rate generally means a stronger, more efficient heart. Watch for a resting rate consistently above 80 bpm.

HRV fitness percentile shows where your heart rate variability ranks compared to others your age. Higher HRV means your nervous system is flexible and resilient. A consistently low percentile may indicate chronic stress, poor sleep, or overtraining.

Respiratory efficiency measures how effectively your lungs exchange oxygen and carbon dioxide with each breath. Good efficiency means your body gets more oxygen with less effort.

HR recovery estimate predicts how quickly your heart rate drops after exercise, a key sign of cardiovascular health. A fast recovery (large drop within one minute) is a strong positive indicator.

Biological age estimate is an overall estimate of how old your body appears to be, regardless of your birthday. It combines signals from your skin, heart, and other markers into a single number. If your biological age is significantly higher than your real age, it's a sign to focus on your health habits.

Vascular age estimates the age of your blood vessels based on stiffness and circulation indicators. Arteries naturally stiffen with age, but lifestyle factors can speed this up or slow it down.

HRV age estimates how old your nervous system "acts" based on heart rate variability patterns. A younger HRV age suggests your body handles stress well and recovers efficiently.

Apparent facial age is how old you look based on your facial features alone, wrinkles, skin tone, and structural cues. This number can differ from your real age depending on genetics and lifestyle.

Skin health age evaluates the condition of your skin, texture, elasticity, tone, and clarity, and translates it into an age estimate. Healthy skin often looks younger than its calendar age.

Aging rate / pace tracks whether you're aging faster or slower than one biological year per calendar year. A pace above 1.0 means your body is aging faster than expected; below 1.0 means you're aging slower.

Age gap score shows the difference between your biological age and your actual age. A negative gap (biological age lower than real age) is great news. A positive gap means your body is showing more wear than expected.

Longevity risk score estimates your overall risk profile for age-related health decline based on multiple biomarkers combined. A higher score means more risk factors are present. Think of this as a big-picture health report card.

Emotional valence measures whether your current emotional state leans positive (happy, content) or negative (sad, upset). It's captured from subtle facial expressions. A consistently negative valence over time may be worth exploring with a mental health professional.

Emotional arousal measures how activated or calm your emotional state is right now, independent of whether you're feeling good or bad. High arousal could mean excitement or anxiety; low arousal could mean relaxation or fatigue.

Emotion category identifies your most likely current emotion from your facial expressions, such as happy, sad, angry, fearful, surprised, or neutral. This is a snapshot, not a diagnosis.

Affect variability measures how much your emotional expressions fluctuate over the course of a scan. Some variability is completely normal. Very low variability can indicate emotional flatness, while very high may suggest instability.

Depression risk score screens for potential signs of depression using facial and behavioral cues. Watch for persistent low mood, loss of interest, changes in sleep, or social withdrawal. This is a screening tool, not a diagnosis. A directional wellness estimate, not a diagnosis.

Anxiety risk score estimates your anxiety level using facial tension and behavioral signals. Signs to watch include persistent worry, restlessness, muscle tension, and difficulty concentrating. A directional wellness estimate, not a diagnosis.

Mental wellness score gives you a combined snapshot of your emotional and psychological well-being based on multiple behavioral indicators. A higher score reflects better overall mental health. Watch for a steady downward trend.

Cognitive load level estimates how hard your brain is working right now based on eye movement, blink patterns, and facial tension. Chronically high levels can lead to burnout and errors.

Psychomotor activity score measures the speed and amount of your facial movements and micro-expressions. Very low activity can be associated with depression or fatigue, while very high activity may indicate agitation.

Melanin index measures the amount of melanin pigment in your skin, which determines your skin tone and how your skin responds to sun exposure. Significant changes could indicate hormonal shifts or skin conditions.

Erythema index measures skin redness, which can result from inflammation, sun exposure, irritation, or increased blood flow. Persistent redness may point to conditions like rosacea or allergic reactions.

Skin luminance score rates the overall brightness and glow of your skin. Healthy, well-hydrated skin naturally reflects light evenly. Dull skin can be a sign of dehydration, poor circulation, or lack of sleep.

Acne severity score rates the extent and intensity of acne visible on your face, from mild to severe. Watch for deep, painful cysts or acne that doesn't respond to over-the-counter treatments.

Looks for signs of rosacea, a common condition causing persistent redness, visible blood vessels, and sometimes small bumps on the face. A wellness cue, not a diagnosis.

Eczema/psoriasis flag checks for skin patterns consistent with eczema or psoriasis, conditions that cause red, itchy, flaky, or scaly patches. These are chronic but very manageable with the right care. A wellness cue to see a professional, not a diagnosis.

Flags a skin spot or mark worth showing a dermatologist. A wellness cue, not a cancer screen or diagnosis.

Sun damage / photoaging grade rates the visible effects of cumulative sun exposure on your skin, including dark spots, uneven tone, and fine lines. Sun damage is the leading cause of premature skin aging.

Skin texture score evaluates the smoothness and evenness of your skin's surface. Healthy skin has a fine, even texture, while rough or bumpy texture can result from dryness, sun damage, or aging.

Pigmentation uniformity measures how even your skin tone is across your face. Uneven pigmentation, dark spots, patches, or blotchiness, can result from sun exposure, hormonal changes, or inflammation.

Pore visibility score rates how noticeable your pores are. Pore size is largely genetic, but excess oil, sun damage, and aging can make them more prominent.

Wrinkle depth map provides a detailed view of wrinkle depth across different areas of your face. Deeper wrinkles are natural with aging but can accelerate with sun exposure, smoking, and dehydration.

Fatigue score (PERCLOS) measures the percentage of time your eyes are partially or fully closed, a well-studied indicator of fatigue. A high score means your eyes are drooping more than usual and your body needs rest.

Drowsiness level detects how close you are to falling asleep based on eye and facial behavior. Even mild drowsiness can significantly impair your reaction time and judgment.

Blink rate counts how many times you blink per minute. Normal is about 15-20 blinks/min. A very low rate often occurs during intense screen use and can lead to dry eyes.

Blink duration measures how long each blink lasts. Normal blinks take about 100-400 milliseconds. Longer-than-normal blinks are a strong sign of drowsiness and fatigue.

Yawn frequency tracks how often you yawn, which is a natural response to fatigue, boredom, or the need for more oxygen. Frequent yawning, especially at unusual times, can signal sleep deprivation.

Microsleep detection watches for very brief episodes (1-15 seconds) where your brain momentarily disengages, essentially falling asleep without realizing it. Even one detected episode is a red flag for severe fatigue.

Attention level estimates how focused and engaged you are based on eye movement, gaze direction, and facial cues. Lower attention can result from fatigue, distraction, or cognitive overload.

Eye redness score measures the degree of redness visible in the whites of your eyes. Mild redness can come from dryness, allergies, screen time, or lack of sleep.

Checks for a yellowish tint in the whites of your eyes or skin. A wellness cue to see a professional, not a diagnosis.

Monitors for unevenness in your face, such as one side drooping. A wellness cue, not a stroke screen or diagnosis.

Parkinson hypomimia score screens for reduced facial expressiveness (sometimes called "masked face"), which some research associates with Parkinson's. A wellness cue, not a diagnosis.

Tremor detection flag watches for involuntary shaking or trembling in your facial muscles. Occasional minor tremors can be caused by caffeine, stress, or fatigue and are usually harmless. Watch for persistent or worsening tremors.

Exophthalmos flag checks for unusual forward bulging of the eyes, which can be associated with thyroid conditions, particularly an overactive thyroid (Graves' disease). A wellness cue, not a thyroid diagnosis.

Pain level indicator estimates your current pain level by analyzing subtle facial muscle movements. Your face naturally expresses pain through brow furrowing, eye tightening, and other micro-expressions.

Anemia screening (conjunctival) examines the inner lining of your lower eyelid for paleness, which is a classic sign of low red blood cell count. A wellness cue, not a blood test or diagnosis. Healthy conjunctiva appear pink-red, while pale conjunctiva may indicate anemia.

BMI estimate provides a rough body mass index estimate based on facial proportions. This is an approximation, facial structure varies greatly between individuals. Watch for significant changes over time rather than a single reading.

Waist-to-height ratio estimate approximates your body fat distribution. Carrying excess weight around the midsection is linked to higher risks for heart disease and diabetes. A ratio above 0.5 is generally considered elevated.

Estimates your likelihood of obstructive sleep apnea, a condition where breathing repeatedly stops during sleep. An emerging estimate, not a diagnosis.

Pupillary light reflex speed measures how quickly your pupils constrict when exposed to bright light. A fast, symmetric response (under 0.5 seconds) indicates healthy cranial nerve function and brainstem integrity.

Pupil constriction amplitude is how much your pupil shrinks when exposed to light, typically 1-3mm in healthy adults. Larger constriction indicates a strong, healthy autonomic nervous system. Reduced amplitude can suggest autonomic dysfunction, fatigue, or neurological conditions.

Pupil dilation latency measures how long it takes your pupil to return to its resting (dilated) size after light exposure ends. Normal re-dilation takes 5-10 seconds. Abnormally fast or slow re-dilation patterns are associated with autonomic nervous system imbalances, anxiety disorders, or sympathetic overdrive.

Consensual pupil response checks whether both pupils react when light is shone in just one eye. In a healthy nervous system, both pupils constrict simultaneously (the "swinging flashlight test").

Cognitive load index uses pupil dilation as a window into mental effort. Your pupils naturally dilate 0.2-0.5mm when you're thinking hard, the more demanding the task, the wider they get. This metric estimates your current cognitive workload from pupil dynamics.

Autonomic pupil score combines pupil constriction, dilation latency, and oscillation patterns into a single score reflecting overall autonomic nervous system health. A healthy score indicates balanced sympathetic and parasympathetic function.

Evaluates multiple pupillary metrics simultaneously. A wellness score, not a concussion or TBI diagnosis.

Pain response index uses pupil dilation patterns to objectively estimate pain levels. Acute pain causes measurable pupil dilation through sympathetic activation. This metric provides a more objective pain measurement than self-reporting alone, useful for tracking chronic pain conditions and treatment effectiveness.

Clinical heart rate via fingertip PPG provides a high-accuracy reading by measuring blood flow directly through your fingertip using the phone's camera and flash. Fingertip contact PPG is generally more precise than facial rPPG.

Screens your fingertip pulse for irregular rhythm that may warrant an ECG. A wellness screen, not a diagnosis.

Estimates blood oxygen using the phone's flash to read your fingertip. A wellness estimate, not a medical pulse oximeter.

Hemoglobin estimation analyzes the color intensity of light passing through your fingertip to estimate blood hemoglobin concentration. Low hemoglobin indicates anemia. Research (HemaApp, UW 2016) demonstrated smartphone-based screening.

Blood glucose trend tracks relative changes in blood sugar by analyzing subtle optical properties of blood flow. Detects trends (rising, stable, falling) rather than absolute values. An emerging estimate, not a glucose meter or diagnosis.

Peripheral perfusion index measures the ratio of pulsatile to non-pulsatile blood flow in your fingertip. Values above 1.0 indicate good perfusion. Low values may suggest peripheral vascular disease or dehydration.

Vocal tremor detection analyzes micro-tremors in your voice that are imperceptible to the ear but detectable by signal processing. Vocal tremor at 4-6 Hz is characteristic of Parkinson's disease, often appearing years before motor symptoms.

Depression screening via voice analyzes prosody, rhythm, tone, and variation in speech. Depression typically flattens vocal range, reduces speaking rate, and increases pause duration. A directional wellness estimate, not a diagnosis.

Respiratory health assessment detects vocal characteristics associated with respiratory conditions. Changes in breathiness, phonation time, and breath-speech patterns can indicate COPD or asthma exacerbation.

Cognitive decline indicator tracks speech fluency, word-finding pauses, and semantic patterns that may change with early cognitive decline. A wellness cue, not a cognitive diagnosis.

Stress level via voice analyzes vocal biomarkers that change under stress, pitch variation, jitter, and shimmer. These micro-variations are invisible to listeners but measurable via signal analysis.

Parkinson's voice biomarker combines vocal tremor, breathiness, monotone pitch, imprecise articulation, and reduced volume into a composite score. Voice changes can precede motor symptoms by 5-10 years. A wellness signal, not a screen or diagnosis.

Tremor detection and characterization uses Eulerian video magnification to amplify invisible motions by 10-100x. Differentiates Parkinson's rest tremor (4-6 Hz) from essential tremor (6-12 Hz) reliably in research settings.

Respiratory waveform visualization amplifies subtle chest and shoulder movements from breathing, providing rate, depth, regularity, and effort measurements comparable to standard monitors.

Micro-expression analysis amplifies facial muscle movements too subtle for the human eye. These involuntary micro-expressions reveal emotional states, stress responses, and pain.

Carotid pulse visualization amplifies skin movement over the carotid artery to visualize the arterial pulse waveform, revealing information about aortic valve function and arterial stiffness.

Neonatal vital signs monitoring uses motion amplification to detect breathing and heart rate in newborns without skin contact.

Anemia screening via spectral analysis performs deeper RGB channel spectroscopy on facial skin. Hemoglobin absorption signatures in red and blue channels correlate with blood hemoglobin levels. A wellness cue, not a blood test.

Analyzes yellow discoloration in skin and sclera using calibrated RGB spectroscopy. A wellness cue to see a professional, not a diagnosis.

Dehydration assessment combines spectral indicators, skin turgor, color temperature shifts, and blood concentration changes, to estimate hydration status.

Bruise age estimation tracks color change of bruises as hemoglobin breaks down: red/purple (fresh) to green (5-7 days) to yellow/brown (7-14 days).

Palm heart rate extracts your heart rate from palm blood vessels. Equal or better accuracy than face (+/- 1-3 BPM) due to dense vasculature and minimal melanin variation.

Peripheral perfusion index via palm measures blood flow strength in the palm's capillary network. Reduced perfusion can indicate Raynaud's disease, PAD, or diabetic complications.

Palmar erythema detection identifies abnormal palm redness indicating liver disease, pregnancy, thyroid conditions, or rheumatoid arthritis.

Nail bed anemia screening analyzes fingernail bed color, pale nail beds are one of the most reliable physical signs of anemia. A wellness cue, not a blood test.

Capillary refill time measures how quickly blood returns to your nail bed after pressing, normal is under 2 seconds. Prolonged refill suggests poor circulation or dehydration.

Frequency Blood Chemistry Index measures the overall electromagnetic resonance pattern of your blood composition. Deviations from a healthy baseline frequency may indicate imbalances in blood chemistry. This is an emerging bioresonance measurement, not a direct blood test.

Frequency Hemoglobin Level detects electromagnetic frequency shifts associated with hemoglobin concentration. Low hemoglobin resonance may correlate with anemia or iron deficiency, though this must be confirmed with standard blood work.

Frequency White Blood Cell Index measures frequency patterns associated with immune cell activity. Elevated readings may suggest the immune system is actively responding to infection or inflammation.

Frequency Platelet Activity detects resonance patterns associated with platelet function and aggregation tendency. Abnormal readings may warrant follow-up with a standard coagulation panel.

Frequency Blood Sugar measures electromagnetic frequency deviations associated with glucose metabolism. This is not a glucometer replacement, it detects frequency shifts that may correlate with glycemic status.

Frequency Lipid Profile detects frequency patterns associated with circulating lipids including cholesterol and triglycerides. Significant deviations should be followed up with a standard lipid panel blood test.

Frequency Liver Enzyme Status measures frequency deviations associated with liver metabolic activity. Elevated readings may suggest increased liver workload from toxins, medications, or dietary stress.

Frequency Kidney Function Index detects electromagnetic frequency patterns associated with renal filtration efficiency. Deviations may correlate with hydration status, kidney stress, or early functional changes.

Frequency Thyroid Balance measures resonance patterns associated with thyroid hormone activity. Imbalances may suggest hypo- or hyperthyroid tendencies, though clinical thyroid panels are required for diagnosis.

Frequency Inflammation Index is a composite frequency reading reflecting systemic inflammatory markers. Higher readings suggest the body may be in an elevated inflammatory state from infection, autoimmune activity, or chronic stress.

Iron Frequency Profile detects the electromagnetic resonance signature of iron stores in the body. Low readings may suggest iron deficiency even before anemia manifests in standard blood tests.

Zinc Frequency Profile measures zinc-related frequency patterns. Zinc is critical for immune function, wound healing, and taste/smell. Low resonance may indicate dietary insufficiency.

Magnesium Frequency Profile detects frequency signatures associated with magnesium status. Magnesium is involved in 300+ enzymatic reactions. Low readings are common due to depleted soil and processed diets.

Calcium Frequency Profile measures resonance patterns related to calcium metabolism and bone mineral density signaling. Readings reflect circulating and tissue-bound calcium frequency signatures.

Selenium Frequency Profile detects selenium-related electromagnetic patterns. Selenium is essential for thyroid function and antioxidant defense. Very narrow optimal range, both deficiency and excess are problematic.

Potassium Frequency Profile measures frequency deviations associated with potassium balance. Critical for heart rhythm, muscle function, and blood pressure regulation.

Vitamin A Frequency Status detects resonance patterns associated with vitamin A (retinol/beta-carotene) levels. Important for vision, immune function, and skin health.

B-Complex Frequency Status measures composite frequency patterns across the B vitamin family (B1, B2, B3, B5, B6, B7, B9, B12). These vitamins work synergistically in energy metabolism and nervous system function.

Vitamin C Frequency Status detects electromagnetic signatures associated with ascorbic acid levels. Vitamin C is essential for collagen synthesis, immune defense, and iron absorption.

Vitamin D Frequency Status measures resonance patterns correlating with vitamin D (cholecalciferol) status. Widespread deficiency globally, critical for bone health, immune function, and mood regulation.

Vitamin E Frequency Status detects frequency patterns associated with tocopherol levels. Vitamin E is a fat-soluble antioxidant protecting cell membranes from oxidative damage.

Amino Acid Frequency Balance measures the composite frequency pattern of essential amino acids. Imbalances may indicate protein malnutrition, digestive issues, or specific amino acid deficiencies.

Heart Frequency Deviation measures how far the heart's electromagnetic frequency deviates from a healthy baseline (1-9 scale). Higher deviation may indicate cardiac stress, rhythm irregularities, or cardiovascular strain.

Lung Frequency Deviation measures pulmonary electromagnetic frequency deviation from healthy baseline. Elevated readings may correlate with respiratory inflammation, reduced capacity, or airway obstruction.

Liver Frequency Deviation detects electromagnetic deviation from the liver's healthy frequency range. The liver processes toxins, produces bile, and regulates metabolism, frequency shifts may reflect functional burden.

Kidney Frequency Deviation measures renal electromagnetic frequency deviation. Kidneys filter blood and regulate fluid balance, frequency shifts may indicate filtration stress or hydration imbalances.

Stomach Frequency Deviation detects gastric electromagnetic frequency deviation. May reflect digestive efficiency, acid production balance, and mucosal health status.

Brain Frequency Deviation measures cerebral electromagnetic frequency deviation from healthy baseline. May correlate with cognitive function, neurotransmitter balance, or neurological stress patterns.

Pancreas Frequency Deviation detects pancreatic electromagnetic frequency deviation. The pancreas produces insulin and digestive enzymes, frequency shifts may reflect metabolic stress or blood sugar regulation issues.

Spleen Frequency Deviation measures splenic electromagnetic frequency deviation. The spleen filters blood and supports immune function, frequency shifts may indicate immune system activation or blood cell recycling changes.

Thyroid Frequency Deviation detects thyroid gland electromagnetic frequency deviation. The thyroid regulates metabolism, energy, and temperature, frequency shifts may indicate hypo- or hyperthyroid tendencies.

Adrenal Frequency Deviation measures adrenal gland electromagnetic frequency deviation. Adrenals produce cortisol and adrenaline, chronic deviation may suggest adrenal fatigue or HPA axis dysregulation.

Mercury Frequency Load detects electromagnetic frequency patterns associated with mercury bioaccumulation. Mercury exposure comes primarily from large fish (tuna, swordfish), dental amalgams, and environmental contamination.

Lead Frequency Load measures frequency signatures associated with lead body burden. Lead exposure comes from old paint, contaminated water, and certain occupational environments.

Arsenic Frequency Load detects resonance patterns associated with arsenic levels. Chronic low-level arsenic exposure can come from rice, well water, and certain agricultural products.

Cadmium Frequency Load measures electromagnetic patterns associated with cadmium bioaccumulation. Primary exposure sources are cigarette smoke, shellfish from polluted waters, and certain batteries/pigments.

Bacterial Load Index detects frequency patterns suggesting elevated bacterial presence or dysbiosis. May indicate active infection, gut microbiome imbalance, or chronic bacterial colonization.

Fungal Presence Index measures frequency signatures associated with fungal overgrowth (candida, mold exposure). Elevated readings may suggest systemic fungal burden or environmental mold exposure.

Chemical Toxin Frequency is a composite reading of frequency patterns associated with environmental chemical toxins (pesticides, solvents, BPA, phthalates). Reflects overall toxic load from environmental exposures.

Allergen Sensitivity Frequency detects frequency resonance patterns associated with immune hypersensitivity. Elevated readings suggest the immune system may be in a heightened state of reactivity to environmental or food allergens.

Lung Meridian (Taiyin of the Hand) governs respiration, immunity, and grief in TCM. It runs from the chest to the thumb. Imbalances may manifest as respiratory issues, skin problems, or persistent sadness.

Large Intestine Meridian (Yangming of the Hand) governs elimination and letting go in TCM. Paired with the Lung Meridian. Imbalances may manifest as constipation, skin issues, or difficulty releasing the past.

Stomach Meridian (Yangming of the Foot) governs digestion and nourishment in TCM. It runs from the face to the second toe. Imbalances may manifest as digestive issues, worry, or appetite disturbances.

Spleen Meridian (Taiyin of the Foot) governs transformation and transport of nutrients in TCM. Paired with Stomach. Imbalances may manifest as fatigue, bloating, bruising, or overthinking.

Heart Meridian (Shaoyin of the Hand) governs blood circulation and houses the Shen (spirit/mind) in TCM. Runs from the armpit to the little finger. Imbalances may manifest as anxiety, insomnia, or palpitations.

Small Intestine Meridian (Taiyang of the Hand) governs separation of pure from impure in TCM, in both digestion and discernment. Paired with Heart. Imbalances may manifest as poor absorption or indecisiveness.

Bladder Meridian (Taiyang of the Foot) is the longest meridian, running from the eyes down the back to the little toe. Governs fluid metabolism and stores vital essence. Imbalances may manifest as urinary issues, back pain, or fear.

Kidney Meridian (Shaoyin of the Foot) stores Jing (essence) and governs growth, reproduction, and willpower in TCM. Considered the foundation of all yin and yang in the body. Imbalances may manifest as fatigue, low back pain, or fear.

Pericardium Meridian (Jueyin of the Hand) protects the Heart and governs emotional boundaries in TCM. Also called the Heart Protector. Imbalances may manifest as chest tightness, emotional vulnerability, or relationship difficulties.

Triple Warmer Meridian (Shaoyang of the Hand) governs the three body cavities (upper, middle, lower) and coordinates water and heat distribution in TCM. Unique to Chinese medicine with no single Western anatomical equivalent.

Gallbladder Meridian (Shaoyang of the Foot) governs decision-making and courage in TCM. Runs along the side of the body. Imbalances may manifest as indecisiveness, migraines (temporal), or rib-side discomfort.

Liver Meridian (Jueyin of the Foot) governs the smooth flow of Qi and emotions in TCM, particularly anger. Stores blood and governs the tendons. Imbalances may manifest as irritability, eye problems, or tendon stiffness.

Root Chakra (Muladhara) at the base of the spine governs survival, security, and grounding in traditional energy medicine. Associated with the adrenals and 396 Hz frequency. Imbalances may manifest as anxiety, fear, or feeling ungrounded.

Sacral Chakra (Svadhisthana) in the lower abdomen governs creativity, pleasure, and emotional flow in traditional energy medicine. Associated with reproductive organs and 417 Hz frequency. Imbalances may manifest as emotional rigidity or creative blocks.

Solar Plexus Chakra (Manipura) above the navel governs personal power, confidence, and metabolism in traditional energy medicine. Associated with the pancreas/digestive organs and 528 Hz frequency. Imbalances may manifest as low self-esteem or digestive issues.

Heart Chakra (Anahata) at the center of the chest governs love, compassion, and emotional healing in traditional energy medicine. Associated with the thymus and 639 Hz frequency. Bridges lower physical and upper spiritual chakras.

Throat Chakra (Vishuddha) at the throat governs communication, self-expression, and truth in traditional energy medicine. Associated with the thyroid and 741 Hz frequency. Imbalances may manifest as communication difficulties or throat issues.

Third Eye Chakra (Ajna) between the eyebrows governs intuition, insight, and inner wisdom in traditional energy medicine. Associated with the pineal gland and 852 Hz frequency. Imbalances may manifest as headaches, poor concentration, or disconnection from intuition.

Crown Chakra (Sahasrara) at the top of the head governs spiritual connection, consciousness, and universal awareness in traditional energy medicine. Associated with the pituitary gland and 963 Hz frequency. Imbalances may manifest as disconnection or existential confusion.

Cardiovascular System Frequency is a composite bioresonance score reflecting the electromagnetic health of the heart, blood vessels, and circulatory system as a whole. Aggregates heart, arterial, and blood frequency data.

Respiratory System Frequency measures the composite electromagnetic frequency pattern of the lungs, airways, and respiratory muscles. Reflects overall respiratory function and capacity.

Digestive System Frequency is a composite reading across stomach, intestines, liver, gallbladder, and pancreas frequencies. Reflects overall digestive efficiency and gut health.

Nervous System Frequency measures the composite electromagnetic pattern of central and peripheral nervous system activity. May reflect neurotransmitter balance, nerve conduction efficiency, and stress response patterns.

Endocrine System Frequency is a composite score reflecting the electromagnetic balance of hormonal glands (thyroid, adrenals, pituitary, gonads). Hormonal imbalances produce characteristic frequency shifts.

Immune System Frequency measures the composite electromagnetic pattern reflecting immune readiness and regulation. Elevated readings may indicate active immune response; low readings may suggest immunosuppression.

Musculoskeletal Frequency reflects the electromagnetic health of bones, muscles, tendons, and joints as a composite score. May indicate inflammatory activity, recovery status, or structural stress patterns.

Integumentary (Skin) Frequency measures the composite electromagnetic frequency of skin, hair, and nails. Reflects overall integumentary system health including hydration, nutrient delivery, and barrier function.

Delta Wave Readiness (0.5-4 Hz) measures how readily your brain synchronizes with delta frequencies associated with deep restorative sleep and healing. High readiness suggests good sleep architecture potential; low readiness may indicate difficulty achieving deep sleep.

Theta Wave Readiness (4-8 Hz) measures your brain's affinity for theta frequencies associated with meditation, creativity, and the twilight state between sleep and waking. Important for memory consolidation and emotional processing.

Alpha Wave Readiness (8-13 Hz) measures synchronization potential with alpha frequencies associated with relaxed alertness, calm focus, and reduced anxiety. The bridge between conscious thinking and subconscious mind.

Beta Wave Readiness (13-30 Hz) measures your brain's capacity for beta frequency states associated with active thinking, problem-solving, and focused concentration. Excess beta is associated with anxiety and overthinking.

Gamma Wave Readiness (30-100 Hz) measures synchronization potential with gamma frequencies associated with peak cognitive performance, insight, and heightened awareness. The fastest brainwave band, linked to advanced meditation and "flow states."