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
In the average lifetime a person will breath in about 44 pounds of dust.
21
10 seconds is the amount of time until unconsciousness after the loss of blood supply to the brain.
108
On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
57
On average, women have always lived longer than men.
195
It has been shown that caffeine causes headaches when stopped suddenly and can cause morning headaches that are relieved by a dose of caffeine.
101
The lense of the eye continues to grow throughout a person's life.
34
Smoking while pregnant increases the chances of spontaneous abortions (miscarriages) stillbirths and premature labor.
77