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
Every hour one billion cells in the body must be replaced.
17
When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46
Every time you sneeze some of your brain cells die.
113
If you were to roll a lung from a human body and out flat it would be the size of a tennis court.
36
The skin on your lips is 200 times more sensitive than your fingertips.
345
The human body contains over a billion miles of DNA.
147
Music has the ability to repair brain damage and return lost memories.
62