Within three days of death, the enzymes that once digested your food begin to eat you.
22
The average sperm cell swims at 8 inches per hour.
76
When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
If you hold farts in during the day, they'll just come out when you sleep.
16
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127