Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
If you are cold you are more likely to be hungry because you use energy to keep warm.
143
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
A person can live without food for about a month, but only about a week without water.
156
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The human body contains over a billion miles of DNA.
147
It is possible for you to survive even after the removal of the spleen, the stomach, one kidney, one lung, 75% of the liver, 80% of the intestines, and almost every organ from the pelvic and groin area.
218