Every hour one billion cells in the body must be replaced.
17
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
The smallest human penis ever recorded was just 5/8 of an inch long!
77
A human being loses an average of 40 to 100 strands of hair a day.
133
The average person can live for eleven days without water, assuming an average temperature of 60 degrees fahrenheit.
15
The human brain doesn't stop developing until about 25 years old.
102
An average adult produces about half a liter of flatulent gas per day, resulting in an average of about fourteen occurrences of flatulence a day.
8
About 400 different kinds of microbes live on and in the human body.
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