On average a woman has 4 sexual partners in her lifetime.
-143
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
It is possible for you to survive even after the removal of the spleen, the stomach, one kidney, one lung, 75% of the liver, 80% of the intestines, and almost every organ from the pelvic and groin area.
218
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132