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
Enamel is hardest substance in the human body.
61
The average person will go on a date at least 100 times before they finally marry.
33
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
On average a woman has 4 sexual partners in her lifetime.
-143
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118