This recommendation is currently available in English.
About the book
Satchin Panda explains how the body's 24-hour clock influences metabolism, hormones, sleep, energy and cellular repair.
Light, food, movement and sleep are timing signals that can strengthen—or disrupt—our biological rhythm.
The big idea
Aligning daily habits with circadian biology can support metabolic health, restorative sleep, focus and long-term well-being.
- Food timing
- Eat with the day
- Sleep rhythm
- Keep regular hours
- Movement
- Move at the right time
Four foundations of circadian health
Food timing
Eat with the day
Keep meals within a consistent daytime window and avoid habitual late-night eating.
Timing shapes metabolism.Sleep rhythm
Keep regular hours
Use consistent sleep and wake times to support hormones, cognition and recovery.
Regularity reinforces the clock.Movement
Move at the right time
Combine daily activity with a schedule that supports energy and performance.
Activity is a powerful time cue.Light
Bright days, dim nights
Seek morning daylight and reduce bright artificial light near bedtime.
Light sets the master clock.Key takeaway
Health is influenced not only by what we do, but also by when we do it.
Why it matters
Circadian disruption is associated with poorer sleep, metabolic strain and reduced well-being.
The result
More consistent energy, sleep and metabolic health across the day.
Original slides
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