An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
On average a woman has 4 sexual partners in her lifetime.
-143
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