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
Redheads require more anesthesia to 'go under' than other hair colors do.
50
We blink 25 times a minute.
51
Children are more allergic to cockroaches than they are to cats!
46
It has been shown that caffeine causes headaches when stopped suddenly and can cause morning headaches that are relieved by a dose of caffeine.
101
During a typical human life span, the human heart will beat approximately 2.5 billion times.
21
About 400 different kinds of microbes live on and in the human body.
-3
The average office desk has 400 times more bacteria than a toilet.
22