Deep Breathing gives you health benefits similar to aerobics.
39
The average human body contains enough iron to make a small nail.
50
Enamel is hardest substance in the human body.
61
You have no sense of smell when you're sleeping!
72
About 400 different kinds of microbes live on and in the human body.
-3
It takes 17 muscles to smile, 43 to frown.
65
"Fish odor syndrome" is a rare genetic disorder that causes people to smell like rotten fish.
5
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23