A popular superstition is that if you put a piece of bread in a baby's crib, it will keep away diseases.
Over 40 million Americans have chronic bad breath.
Your thigh bone is stronger than concrete.
The incidents of immune system diseases has increased over 200% in the last five years.
One out of 20 people have an extra rib.
It is not possible to tickle yourself. The cerebellum, a part of the brain, warns the rest of the brain that you are about to tickle yourself. Since your brain knows this, it ignores the resulting sensation.
Once a human reaches the age of 35, he/she will start losing approximately 7,000 brain cells a day. The cells will never be replaced.
Flu shots only work about 70% of the time.
The human face is made up of 14 bones.
On average, one heartbeat pumps five tablespoons of blood.