Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Your thumb is about the same size as your nose.
124
When you take a step, you are using up to 200 muscles.
886
The human brain has the capacity to store everything that you experience.
4k
The average sperm cell swims at 8 inches per hour.
76
Every year your body replaces 98% of your atoms.
119
Enamel is hardest substance in the human body.
61
Poor eyesight (myopia) is associated with higher IQ.
232