It takes about 20 seconds for a red blood cell to circle the whole body.
102
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
Enamel is hardest substance in the human body.
61
Chewing gum boosts your brain power.
285