The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
Enamel is hardest substance in the human body.
61
On average, there's 100 billion neurons in the human brain.
83
Human hair and fingernails continue to grow after death.
7