HRV Scan
60 seconds of facial photoplethysmography. Extracts HR, RMSSD, Sympathetic Index and LF/HF ratio from micro-color shifts in your skin.
Predictive stress intelligence in 60 seconds. No cloud. No account. Just science.
✦ Available on iOS
Your body knows what your mind hasn't processed yet. Vaelum reads the signal.
HRV reveals stress 20 minutes before you consciously notice it. Subtle changes in beat-to-beat timing tell the full story.
No wearable needed. Just your phone's camera and ambient light. Remote photoplethysmography captures your pulse through skin color changes.
A clinical-grade metric computed from 60 seconds of data. Used in space medicine and occupational health for decades.
Four stress zones from calm to critical, updated in real-time. Your nervous system state, visualized and quantified.
One metric cannot capture the complexity of human stress. Vaelum measures six independent dimensions for a complete picture.
Camera-based heart rate variability analysis using rPPG. Clinical-grade Baevsky Stress Index from 60s of data.
Reaction time, Stroop, N-Back, Flanker, and tapping tests measure processing speed, inhibition, and working memory.
Validated instruments: PSS-10, GAD-7, PHQ-9, and PHQ-4/WHO-5 express screening. Peer-reviewed and standardized.
Five guided protocols: Box, 4-7-8, Coherent, Cyclic Sighing, and 2:1 Relaxing. Visually guided, scientifically backed.
Daily tracking with trend visualization. Identify patterns across days, weeks, and months for proactive management.
On-device machine learning correlates your dimensions to predict stress episodes before they happen.
Interactive demos of what Vaelum measures — running right in your browser.
Every test works right here in your browser. No downloads, no sign-ups. Experience clinical-grade assessment in seconds.
PHQ-4 anxiety/depression screener + WHO-5 wellbeing index. 9 questions, 2 minutes.
Measure your visual-motor response speed. Wait for the circle to turn green, then click as fast as you can.
Tap as fast as you can. 3 rounds of 10 seconds each. Measures motor fatigue and nervous system regulation.
Name the COLOR of the word, not the word itself. Tests cognitive inhibition and selective attention.
Press MATCH when the current letter matches the one shown 2 positions ago. Tests working memory capacity.
Identify the direction of the CENTER arrow, ignoring the surrounding arrows. Measures inhibitory control.
Perceived Stress Scale. 10 questions about your feelings and thoughts during the last month.
Generalized Anxiety Disorder screener. 7 questions about the past 2 weeks.
Patient Health Questionnaire for depression. 9 questions about the past 2 weeks.
Choose a scientifically-backed breathing protocol. Follow the visual guide for optimal results.
Your multi-dimensional stress profile, computed from completed assessments.
Get the full experience with camera-based HRV, daily tracking, and predictive AI — all 100% private.
Every assessment in Vaelum is grounded in peer-reviewed research with decades of clinical validation.
Start free. Upgrade when you need more depth.
Each Vaelum program is a standalone clinical instrument — derived from published research, not wellness folklore. Tap any card to see the protocol, duration, what it measures, and when to use it.
60 seconds of facial photoplethysmography. Extracts HR, RMSSD, Sympathetic Index and LF/HF ratio from micro-color shifts in your skin.
Three-test battery — HRV + one cognitive probe + GAD-7 — that returns a composite stress score in under five minutes.
Four-question ecological check: energy, mood, focus, tension. Cross-referenced with your HRV to separate subjective drift from physiology.
Simple visual-response paradigm. Measures central processing latency and trial-to-trial variability — the earliest marker of fatigue.
10-second maximal tapping bouts quantify motor speed, fatigue index and asymmetry — a clinical staple since Halstead-Reitan.
14 color-word conflict trials. Interference score isolates prefrontal control capacity under cognitive load.
Working-memory updating task. Tracks hits, false alarms and dʹ — sensitive to sleep debt and acute stress.
Time-pressured forced-choice task. Measures impulse control and the speed-accuracy tradeoff under sympathetic load.
Perceived Stress Scale (Cohen, 1983). Ten items, 0–40 range, stress category output. The global standard for subjective stress.
Seven-item anxiety screener used in primary care worldwide. 0–21 severity band mapped directly onto your stress calendar.
Nine-item depression screener — the reference instrument for DSM-5 criterion tracking over time.
WHO mhGAP brief screen: GAD-2, PHQ-2 and the WHO-5 wellbeing index, returned as one combined weekly trajectory.
Pittsburgh Sleep Quality Index — 19-item global sleep score with seven component subscales.
Square-wave pattern used by Navy SEALs. Equalizes autonomic tone and snaps attention back into the present.
Long exhale dominance. Evidence for rapid parasympathetic activation and faster sleep onset. Not for pregnancy or cardiac disease.
Paces breathing at 6 cycles per minute — the frequency at which HRV amplitude is maximised and the baroreflex synchronises.
Double-inhale, long exhale. In the 2023 Stanford RCT, five daily minutes outperformed mindfulness for mood and HRV within a month.
Extended-exhale pattern. Down-regulates sympathetic tone without the breath-holding demands of 4-7-8.
Every pixel below is rendered in your browser, in real time. No videos, no mockups — just the actual Vaelum interface running through four of its signature moments.