Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Yawns are more contagious among people with closer relationships.
163
It takes about 20 seconds for a red blood cell to circle the whole body.
102
All 13 minerals necessary for human life can be found in alcohol beverages.
282
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307