The Power of When
by Michael Breus
A sleep doctor's chronotype system, lion, bear, wolf, dolphin, with recommended times for sleep, coffee, exercise, hard work, creative work and difficult conversations for each. The four types are a simplification of real circadian variation, but the core idea, that timing matters and differs by person, is sound and the schedules are useful starting points.
Read it if…
you suspect you are working against your body clock and want a schedule to test.
Skip it if…
you distrust typologies; this is one.
Three things you will actually use
- Timing changes outcomes; match tasks to energy.
- Most people are bears; schedule accordingly.
- Consistency matters more than the perfect time.
Do this first
Take the quiz, then move your hardest work to your type's peak window for a week.
Our verdict
Simplified but useful.
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