Poor eyesight (myopia) is associated with higher IQ.
232
Your thumb is about the same size as your nose.
124
If your DNA was stretched out it would reach to the moon 6,000 times.
256
When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Enamel is hardest substance in the human body.
61
Every year your body replaces 98% of your atoms.
119