
Bivryn Biological Intelligence
Read your body, finally
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What's New in Bivryn Biological Intelligence
2.3.1
October 27, 2026
Your numbers, up front Under the reading, one line now shows HRV, resting heart rate and last night's sleep, each against your usual: "HRV 48 ms · usual 52". Tap any of them to open its trend. What came before Symptom history now shows what your own data looked like before the days you logged a headache, back pain, fatigue or anything else: a short night, low HRV, raised resting heart rate, alcohol or late caffeine the day before, each compared with your other days. "After a night under 6h 05m: 4 of 7 headache days, 3 of 52 other days." Log a symptom on three or more days and it appears. The morning after Log a drink, and the next morning shows how your HRV has done after your past alcohol nights. Discover adds a free "Patterns in your data" section: next-morning HRV and resting heart rate after alcohol, late caffeine and late meals, with how many nights each is based on. Tap one to start a 14-day test. More in your week The weekly reading now includes how regular your bedtimes were and how steady your HRV was day to day. Trends adds 90-day and 1-year views, resting heart rate, and a VO₂max and walking heart rate trend when the change is real. Your six-week direction now shows on Home. Today's numbers, only when they're today's If your watch was off, Bivryn no longer shows an older reading as this morning's. Sleep, HRV, resting heart rate, breathing rate, wrist temperature and oxygen only count when they're from last night. Slower measurements like VO₂max and blood pressure show the date they were taken. The widget and Watch follow the same rule. Faster everywhere Switching tabs is instant. Home updates on its own when your watch syncs, when you come back to the app, and at the start of a new day. Long reads of your history are shared and cached, and the app no longer waits minutes on a slow connection. More honest readings • When something moved the wrong way, the reading leads with it, not with a personal best. • The day ahead names a dip only when this morning's numbers make it worth naming, and says it's your usual daily shape adjusted for them. • Behaviour is now paired with the night and morning after it, not the one before. • HRV and resting heart rate thresholds sit above normal day-to-day noise. • Steady training no longer reads as a load spike.
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