When your face blushes, the lining of your stomach turns red, too.
154
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
Every cigarette smoked cuts at least five minutes of life on average, which is roughly the time it takes to smoke one cigarette.
118
Your stomach produces a new layer of mucus every two weeks so that it doesn't digest itself.
160
There are about 1,400 different species of bacteria in your belly button.
10
Most lipstick contains fish scales.
37
The human brain doesn't stop developing until about 25 years old.
102