Your hair grows faster in the morning than at any other time of day.
91
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
You see your nose at all times, your brain just chooses to ignore it.
30
Flu shots only work about 70% of the time.
18
Children are more allergic to cockroaches than they are to cats!
46
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99