A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
The human brain is insensitive to pain.
76
Within three days of death, the enzymes that once digested your food begin to eat you.
22
In one day, adult lungs move about 10,000 litres of air.
11
If your stomach didn't produce a new layer of mucous every two weeks, it would digest itself.
33
25% of your bones are located in your feet.
12
While 7 men in 100 have some form of color blindness, only 1 woman in 1,000 suffers from it.
50
Medical research has found substances in mistletoe that can slow down tumor growth.
32