Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
The average sperm cell swims at 8 inches per hour.
76
Every year your body replaces 98% of your atoms.
119
Your thumb is about the same size as your nose.
124
Enamel is hardest substance in the human body.
61
Poor eyesight (myopia) is associated with higher IQ.
232