There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Our eyes are always the same size from birth, but our nose and ears never stop growing.
269
You see your nose at all times, your brain just chooses to ignore it.
30
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
The human sigh acts as a physiological reset button.
23
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
There are about 1,400 different species of bacteria in your belly button.
10