In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Your heart pumps about 2,000 gallons of blood each day!
53
The tongue is the strongest muscle in the human body.
50
It takes 17 muscles to smile, 43 to frown.
65
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
A toothbrush within 6 feet of a toilet can get airborne bacteria from flushing.
15