On average, there's 100 billion neurons in the human brain.
83
Your heart beats over 100,000 times a day!
54
Your body is creating and killing about 2.4 million red blood cells per second.
17
The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130
The aorta, the largest artery in the body, is almost the diameter of a garden hose.
37
Most dreams last only 5 to 20 minutes.
79
On average, women have always lived longer than men.
195
According to a 1950s survey, 75% of men ejaculate within two minutes of penetration.
109