Circadian rhythm is the internal clock that regulates the body’s sleep and wake cycles over a 24-hour time period. Because circadian rhythm is controlled by the part of the brain that responds to light, alertness tends to peak during the day and decline at night.

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0:00 The Complete Guide to Circadian Rhythm
0:41 What is Circadian Rhythm?
1:37 What does the Circadian Rhythm do?
2:09 Internal Biological Clock System
3:05 What sets the Circadian Rhythm?
3:40 How to have a healthy Circadian Rhythm
4:45 Factors that impact Circadian Rhythm
5:15 Why is a healthy Circadian Rhythm important?
5:20 Effects of irregular Circadian Rhythm
5:50 Metabolism and Circadian Rhythm
6:55 Exercise and Circadian Rhythm
7:12 Mental Health and Circadian Rhythm
7:18 Seasonal Affective Disorder
8:05 Tips for having a healthy Circadian Rhythm

Learn more about Circadian Rhythm on Sleepopolis:
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