Enamel is hardest substance in the human body.
61
The human brain has the capacity to store everything that you experience.
4k
When you take a step, you are using up to 200 muscles.
886
One human hair can support 3 ounces.
191
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Every year your body replaces 98% of your atoms.
119
The human brain doesn't stop developing until about 25 years old.
102
Your thumb is about the same size as your nose.
124