It takes about 20 seconds for a red blood cell to circle the whole body.
102
Poor eyesight (myopia) is associated with higher IQ.
232
Our Right Lungs takes more air than our left lung.
194
Enamel is hardest substance in the human body.
61
The human brain doesn't stop developing until about 25 years old.
102
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266