Practicing Healthful Behaviors Make a list of ways you can have fun and stay active without using drugs.

Because without physical activity, the body has extra "energy" if you will, and so when it is time for bed you are not tired, so you end up staying up all night. also there is probably an effect on your internal clock, which messes with your melatonin production which goes hand in hand with your sleep cycle

A. vitamin c is your answer

Frequency of exercise, intensity, time allotted, and type of exercise