The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
The average person's skin weighs twice as much as their brain.
131
Within three days of death, the enzymes that once digested your food begin to eat you.
22
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
The levels of two stress hormones, cortisol and epinephrine which suppress the body's immune system, will actually drop after a dose of laughter.
112