01EXPLAIN
It explains your patterns.
Stop guessing why you feel off. Longvai cross-references sleep, HRV, training, nutrition, mood and weather to surface the actual driver — and ranks it by statistical confidence.
Causewhy your HRV crashed
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Longvai is a personal health intelligenceplatform. AI that explains your patterns, predicts what's coming, and runs n=1 experiments on you — so you stop guessing and start knowing what works for your body.
HRV dropped 18% vs. your 8-week average. We traced it to 3 late evenings of alcohol (Tue, Thu, Sat) compounding poor recovery. Try a 21:30 cutoff this week.
You don't need another dashboard showing yesterday's sleep score. You need to know why you slept badly, what caused this week's energy dip, and which intervention will actually move your biomarkers — for your body, not the average human.
Longvai connects your wearables, labs, and journal into one model of you. Then it explains, predicts, and experiments.
Stop guessing why you feel off. Longvai cross-references sleep, HRV, training, nutrition, mood and weather to surface the actual driver — and ranks it by statistical confidence.
Forecast tomorrow's readiness. Get illness early warnings 36–72h before symptoms. Watch your VO₂ trajectory project six months out — so you intervene before, not after.
Wonder if creatine actually helps your sleep? Run a proper n=1 trial — Longvai handles randomization, controls, and statistical analysis. Get a real answer in 4 weeks, not vibes.
One readable page. What changed, what to watch, one experiment to try. Written by AI that read every signal of yours this week, not a generic newsletter.
Most apps do one thing. Longvai is built as a connected system — every module feeds the others, so a single insight in your sleep data shows up as an experiment, a forecast, and a brief.
Ask anything about your body. The AI reads your data — and answers from it.
Explore →Readiness forecasts, illness early warnings, long-horizon biomarker projections.
Explore →Design n=1 trials with randomization. Get statistically grounded results, not anecdotes.
Explore →AI-written briefing every Sunday. What changed, what's working, what to try next week.
Explore →The moment a biomarker drifts outside your personal range, you'll know — with context.
Explore →Set a real outcome — VO₂ +5, fasting glucose under 95, deep sleep up 30%. Track honestly.
Explore →Sync wearables, labs, supplements, and a 30-second daily check-in. Longvai builds a model of you, not the average user.
Rank-correlation, change-point detection, effect-size analysis — running quietly over your timeline, surfacing what actually drives your outcomes.
One brief on Sunday. Insights when they matter. A running experiment in your pocket. Decisions backed by evidence — yours, not Reddit's.
Not vague "wellness." Specific, measurable questions about your own body — answered from your own data, with the math shown.
Rank what actually moves your HRV — alcohol, late training, stress — so your nervous system can recover.
See your post-meal response per food, and steady your energy instead of guessing at crashes.
Run a real n=1 trial on your deep sleep and get a statistically grounded yes or no — not a vibe.
Stop reading 12 Reddit threads about a supplement. Run an experiment on yourself and know.
Longvai answers these in your numbers — and tells you the confidence behind every answer. Open beta · results depend on your data, not a guarantee.
“We got tired of dashboards. You can wear a ring for five years, export gigabytes of data, and still not know why you slept badly last night. The data was never the hard part — the understanding was. So we built the layer that does the understanding for you.”
Open beta is live. Sign in with Google — free, no credit card, no data sold. Ever.