AI health coach: a training buddy that reads your data

A generic AI doesn't know your recovery today or how you slept last night. Vita Buddy answers from your actual current data: low recovery → easy cardio; high sleep debt → catch up on sleep. It remembers the conversation and follows your goals over time.

A typical morning: you ask, 'Recovery is 41% and I have a strength class tonight — should I go?' Vita Buddy reads your data before answering — 'You're in the yellow zone, mostly because deep sleep was only 48 minutes and HRV is 15% below baseline. Go, but swap heavy compounds for technique sets at ~70% and cap it at 45 minutes; in bed by 11 and tomorrow will likely be green.' Follow up with 'what about this week's running volume?' and it keeps the thread: 'Your strain is already 20% above last week — turn Thursday's intervals into 40 minutes of Zone 2.' Every line is grounded in your actual numbers, not a template.

Ask a general-purpose model a health question and you spend half the effort describing yourself — then get advice for the average person. Vita Buddy starts with your context already loaded:

• It sees your data — recovery, sleep structure, training load, lab markers — no verbal briefing needed
• It remembers your goals and previous turns; multi-turn memory makes each answer sharper
• It speaks first — a proactive daily state-read plus one concrete action, not just Q&A
• It knows its limits — general health and training reference only; no diagnosis, and out-of-range markers get a 'see your doctor'

WHOOP gives you numbers; Vita Buddy turns them into action. It reads your WHOOP recovery/sleep/strain together with Apple Health and lab reports to answer 'what should I actually do today' — the kind of question a WHOOP alone can't. WHOOP's own Coach analyses WHOOP data only, in English; Vita Buddy's edge is breadth of sources and native Chinese.