When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46
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
It takes about 20 seconds for a red blood cell to circle the whole body.
102
The human brain doesn't stop developing until about 25 years old.
102
Chewing gum boosts your brain power.
285
Your body is creating and killing about 2.4 million red blood cells per second.
17
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99