AI Tutor
Have you ever spent an entire afternoon running around outside, only to fall asleep the second your head hit the pillow?
Moving your body burns energy and builds up sleep drive, which is your body's natural urge to fall asleep and recharge.
Why does moving during the day make your brain feel so sleepy at night?

The Cool-Down Signal

When you run or jump, your muscles work hard and your body temperature rises.
A few hours later, your body cools back down, and that gentle drop in temperature signals to your brain that it is time for bed.
Falling asleep faster is great, but what happens to the quality of your sleep after an active day?

Supercharging Your Rest

Being active helps you spend more time in deep sleep, the most restful stage of sleep where your muscles heal and your brain locks in what you learned.
Does this mean doing jumping jacks right before climbing under the covers is a good idea?

Getting the Timing Right