Internal Time
by Till Roenneberg
The chronobiologist who coined social jetlag on chronotypes, school start times and why larks and owls differ. Short chapters, big implications.
Read it if…
you are an owl in a lark's world.
See the book →
Skip it if…
you want tips only.
Try instead: The Promise of Sleep →
Three things you will actually use
- Chronotype is biology.
- Social jetlag harms.
- Align schedule to clock where you can.
Do this first
Calculate your social jetlag.
Our verdict
Social jetlag, named.
See the book →
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