Flu shots only work about 70% of the time.
18
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Wearing headphones for an hour increases the bacteria in your ear 700 times.
235
By the age of 60, most people have lost 50% of their taste buds.
17
Unlike dogs, pigs, and some other mammals, humans cannot taste water. They taste only the chemicals and impurities in the water.
95
The aorta, the largest artery in the body, is almost the diameter of a garden hose.
37
Chocolate, sex, and laughter are all important for a healthy brain.
37
On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
56