Your heart rate can rise as much as 30% during a yawn.
69
If you unfolded your brain, it would cover an ironing board.
42
Crushed cockroaches can be applied to a stinging wound to help relieve the pain.
31
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
"Fish odor syndrome" is a rare genetic disorder that causes people to smell like rotten fish.
5
Only 1% of bacteria cause disease.
45
The average person who stops smoking requires one hour less sleep a night.
79