The average sperm cell swims at 8 inches per hour.
4
The human brain doesn't stop developing until about 25 years old.
102
Every human spent about half an hour as a single cell.
144
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Obsessive nose picking is called Rhinotillexomania.
101
The human brain uses approximately as much energy as a 10 watt light bulb.
120
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
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