The Science of Sleep: A Brief Guide on How to Sleep Better Every Night
The Circadian Rhythm
It is impacted by three main factors:
- Light: probably the most significant pace setter of the circadian rhythm. Staring into a bright light for 30 minutes or so can often reset your circadian rhythm regardless of what time of day it is.
- The time of day, your daily schedule, and the order in which you perform tasks can all impact your sleep-wake cycle.
- Melatonin: this is the hormone that causes drowsiness and controls body temperature. It increases after dark and decreases before dawn.
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