In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Within three days of death, the enzymes that once digested your food begin to eat you.
22
If you are cold you are more likely to be hungry because you use energy to keep warm.
143
There's 100 trillion good bacteria living in your body.
17
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
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