Enamel is hardest substance in the human body.
61
Human teeth are almost as hard as rocks!
47
More people use blue toothbrushes, than red ones!
66
Lack of water is the #1 trigger of daytime fatigue.
148
The male fetus is capable of attaining an erection during the last trimester.
75
"Fish odor syndrome" is a rare genetic disorder that causes people to smell like rotten fish.
5
Chocolate, sex, and laughter are all important for a healthy brain.
37