Your tongue is the only muscle in your body that is attached at only one end.
173
Within three days of death, the enzymes that once digested your food begin to eat you.
22
If you were to roll a lung from a human body and out flat it would be the size of a tennis court.
36
A person will burn 7 percent more calories if they walk on hard dirt compared to pavement.
45
Sex burns about 360 calories per hour.
860
According to one report, it would take 800 marijuana joints to kill a person - but the cause of death would be carbon monoxide poisoning.
176
From the age of thirty, humans gradually begin to shrink in size.
1