Social Rhythms

Changing seasons, work schedule changes, welcoming a child, and other major life events can disrupt our internal biological timekeeping. This timekeeping controls sleep, metabolism, mood, fatigue, and even immune function. Social Rhythms processes your step, sleep, and heart rate data shared anonymously from Health Connect into statistical and mathematical algorithms, developed at the University of Michigan, to detect if your 24-hour (circadian) and sleep rhythms are disrupted. This is used to send reports back to you on how your timekeeping may be disrupted.

Mathematical models use step data to predict the timing of melatonin onset, a key signal to your body indicating the biological night. Social Rhythms also analyzes heart rate data, removing the effects of activity, sleep, and posture to determine the underlying circadian rhythm. Sleep data is necessary since circadian rhythms in heart rate are different during sleep than when awake. Only with data over several days from sleep, heart rate and activity can disruptions in this timekeeping be determined.

Recent changes:
Changed: The app is better focused around the core functionality of analysis alerts.