A person can live without food for about a month, but only about a week without water.
156
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
A human being loses an average of 40 to 100 strands of hair a day.
133
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
22
If you are cold you are more likely to be hungry because you use energy to keep warm.
144