The Science Behind Wearables

A newsletter breaking down the science behind wearable health metrics

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Your wearable tracks heart rate, sleep stages, skin temperature, and movement - around the clock, every day. But what does that data actually mean? How does a wrist sensor turn raw signals into a recovery score or a sleep quality estimate? This newsletter breaks down the physiology, math, and measurement science behind wearable health metrics. Each episode covers one topic - what’s happening in your body, how devices capture it, what the research says, and where the gaps are. Written by Anna D. Zych: neuroscience background from Max Planck Institute for Psychiatry and Princeton Neuroscience Institute, currently leading health science at Open Wearables, an open-source platform by Momentum.

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