It is almost impossible to sneeze with your eyes open. It is a defense mechanism that has evolved to protect our eyes from bacteria and debris.
164
Wearing headphones for an hour increases the bacteria in your ear 700 times.
235
The lense of the eye continues to grow throughout a person's life.
34
Your heart beats over 100,000 times a day!
54
Flu shots only work about 70% of the time.
18
Although African-Americans make up only 13% of the U.S. population, they accounted for one half of the estimated new HIV/AIDS diagnoses in 2004.
70
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

