The human brain is more active during sleep than during the day.
28
Drinking watermelon juice before a workout helps reduce muscle soreness.
21
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Every hour one billion cells in the body must be replaced.
17
Children are poisoned most frequently by eating harmful plants.
13
Flu shots only work about 70% of the time.
18
If your stomach didn't produce a new layer of mucous every two weeks, it would digest itself.
33