Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
Your stomach produces a new layer of mucus every two weeks so that it doesn't digest itself.
160
People who sleep late have more mental stamina and can outperform early risers.
33
Redheads require up to 20% more anesthesia to be knocked out.
112
It is almost impossible to sneeze with your eyes open. It is a defense mechanism that has evolved to protect our eyes from bacteria and debris.
164
Although African-Americans make up only 13% of the U.S. population, they accounted for one half of the estimated new HIV/AIDS diagnoses in 2004.
70