The department of
Chronobiology
Chronobiology explains how your circadian rhythm, sleep cycles, and body clock shape your energy, focus, and health across 24 hours.
Pieces
2
Sleep
July 2026 · 6 min
The Two Hours in the Middle: What the Biphasic Sleep Study Actually Measured
The number is two hours. In 1992, the psychiatrist Thomas Wehr ran an experiment that still anchors almost every serious conversation about biphasic sleep.
By Daniel Whitfield · Read →
Circadian
May 2026 · 6 min
The Circadian Rhythm Is Older Than You Think — and Younger Than the Science
The idea that the human body keeps its own time — that there is a clock running inside us, independent of sunrise — sounds like something we have always known. We haven't.
By Megan Caldwell · Read →
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