From the age of thirty, humans gradually begin to shrink in size.
1
Smoking while pregnant increases the chances of spontaneous abortions (miscarriages) stillbirths and premature labor.
77
When you take a step, you are using up to 200 muscles.
885
Flu shots only work about 70% of the time.
18
If you unfolded your brain, it would cover an ironing board.
42



