The largest cell in the human body is the female egg and the smallest is the male sperm.
682
During menstruation, the sensitivity of a woman's middle finger is reduced.
47
The human heart creates enough pressure to squirt blood 30 ft.
37
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
The tongue is the strongest muscle in the human body.
50
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
The skin on your lips is 200 times more sensitive than your fingertips.
345