The average sperm cell swims at 8 inches per hour.
76
The human body contains over a billion miles of DNA.
147
Enamel is hardest substance in the human body.
61
The human brain has the capacity to store everything that you experience.
4k
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111