It has been shown that caffeine causes headaches when stopped suddenly and can cause morning headaches that are relieved by a dose of caffeine.
101
The chemicals indole and skatole, which help to account for the particular smell of human feces, are used as ingredients in perfume!
-3
There are about 1,400 different species of bacteria in your belly button.
10
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
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
The brain can stay alive for 4 to 6 minutes without oxygen. After that cells begin die.
193
Human thigh bones are stronger than concrete!
63
We are born with 350 bones, and die with 206.
135