The human brain doesn't stop developing until about 25 years old.
102
When you take a step, you are using up to 200 muscles.
886
It takes about 20 seconds for a red blood cell to circle the whole body.
102
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
If your DNA was stretched out it would reach to the moon 6,000 times.
256
Your heart will pump about 212 million liters in its lifetime.
26
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
The average person's skin weighs twice as much as their brain.
131