A cough releases an explosive charge of air that moves at speeds up to 60 mph.
A fetus acquires fingerprints at the age of three months.
A fingernail or toenail takes about 6 months to grow from base to tip.
A healthy individual releases 3.5 oz. of gas in a single flatulent emission, or about 17 oz. in a day.
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.
A sneeze can exceed the speed of 100 mph.
According to German researchers, the risk of heart attack is higher on Monday than any other day of the week.