The human brain doesn't stop developing until about 25 years old.
102
The average sperm cell swims at 8 inches per hour.
4
Human hair and fingernails continue to grow after death.
7
Your heart will pump about 212 million liters in its lifetime.
26
Every human spent about half an hour as a single cell.
144
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
In one day, adult lungs move about 10,000 litres of air.
11