The Science of Sleep: Understanding Your Sleep Cycle
Test your knowledge about sleep cycles, circadian rhythms, and how to optimize your rest for better health and performance.
Test your knowledge about sleep cycles, circadian rhythms, and how to optimize your rest for better health and performance.
Play through the questions and see your score instantly
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We organize memories
We process emotions
Our body repairs and regenerates tissues
We dream vividly
Light exposure
Exercise timing
Meal timing
Room temperature
Varying wake times by more than 2 hours
Eating dinner late
Taking afternoon naps
Exercising in the evening
70-73°F (21-23°C)
60-63°F (15-17°C)
65-68°F (18-20°C)
75-80°F (24-27°C)
Light sleep
Deep sleep
REM sleep
Sleep onset
Get up and do a calm activity
Stay in bed until you fall asleep
Check the time frequently
Use your phone to distract yourself
By increasing melatonin production
By speeding up metabolism
By blocking adenosine receptors
By raising body temperature
Immediately switch to local meal times
Get morning sunlight exposure
Take melatonin throughout the day
Sleep whenever you feel tired
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