The human brain doesn't stop developing until about 25 years old.
102
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
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
Your thumb is about the same size as your nose.
124
Enamel is hardest substance in the human body.
61
The average sperm cell swims at 8 inches per hour.
76
Our Right Lungs takes more air than our left lung.
194