A cough releases an explosive charge of air that moves at speeds up to 60 mph.
A fingernail or toenail takes about 6 months to grow from base to tip.
A human being loses an average of 40 to 100 strands of hair a day.
A person will die from total lack of sleep sooner than from starvation. Death will occur about 10 days without sleep, while starvation takes a few weeks.
An individual blood cell takes about 60 seconds to make a complete circuit of the body.
Blondes have more hair than dark-haired people.
Every time you lick a stamp, you're consuming 1/10 of a calorie.
Humans shed about 600,000 particles of skin every hour - about 1.5 pounds a year. By 70 years of age, an average person will have lost 105 pounds of skin.
Lab tests can detect traces of alcohol in urine six to 12 hours after a person has stopped drinking.
The human brain is about 85% water.
There are 60,000 miles of blood vessels in the human body.
Three-hundred-million cells die in the human body every minute.