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
Wearing headphones for an hour increases the bacteria in your ear 700 times.
235
It takes about 20 seconds for a red blood cell to circle the whole body.
102
35,000 people in the U.S. will die from the flu annually.
6
While 7 men in 100 have some form of color blindness, only 1 woman in 1,000 suffers from it.
50
One or two alcohol drinks a day can be anti-inflammatory.
75
Pain occurs when sounds are above 130 db.
123
From the age of thirty, humans gradually begin to shrink in size.
1