A person will burn 7 percent more calories if they walk on hard dirt compared to pavement.
45
When you take a step, you are using up to 200 muscles.
886
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
Your wounds heal faster if you lick them, you instinctively do this for that reason. Tears help, too.
20
The male fetus is capable of attaining an erection during the last trimester.
75
There is a disease called ichthyosis that turns the skin scaly like a fish.
90
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
Banging your head against a wall uses 150 calories an hour.
57