Your thumb is about the same size as your nose.
124
If you hold farts in during the day, they'll just come out when you sleep.
16
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
If your DNA was stretched out it would reach to the moon 6,000 times.
256
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
There's 100 trillion good bacteria living in your body.
17
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197