Corner May 9

- Human feet have 52 bones, accounting for one quarter of all the human body's bones. 

- Feet have 500,000 sweat glands and can produce more than a pint of sweat a day.

-The acid in your stomach is strong enough to dissolve razor blades. The reason it doesn't eat away at your stomach is that the cells of your stomach wall renew themselves so frequently that you get a new stomach lining every three to four days.

- The human lungs contain approximately 2,400 kilometers (1,500 mi) of airways and 300 to 500 million hollow cavities, having a total surface area of about 70 square meters, roughly  the same area as one side of a tennis court. Furthermore, if all of the capillaries that surround the lung cavities were unwound and laid end to end, they would extend for about 992 kilometers. Also, your left lung is smaller than your right lung to make room for your heart.

-Sneezes regularly exceed 100 mph, while coughs clock in at about 60 mph.

-Your body gives off enough heat in 30 minutes to bring half a gallon of water to a boil.