Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
The human body contains over a billion miles of DNA.
147
Your thumb is about the same size as your nose.
124
Every year your body replaces 98% of your atoms.
119
The average person's skin weighs twice as much as their brain.
131