Only 2% of the Earth's population are natural redheads.
13
People who have a strong friendship possess the ability to communicate with one another through facial expressions.
46
Yawns are more contagious among people with closer relationships.
163
Children's sense of smell is better than adults'.
860
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
Half of all Americans over the age of 55 have no teeth.
39
Women who play video games tend to have more sex and be happier with their relationships than those who don’t.
18
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191