Your ribs move about 5 million times a year, every time you breathe!
60
Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15
The average tastebud lives only 10 days before it dies and is replaced by a new one.
15
If you are bitten by a poisonous snake, and fail to receive medical attention, you still have a 50% chance of survival.
28
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
If you were to roll a lung from a human body and out flat it would be the size of a tennis court.
36
In the average lifetime a person will breath in about 44 pounds of dust.
21