Every day, the average person swallows about a quart of mucous.
5
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
The human brain is insensitive to pain.
76
Vicks inhalers can cause you to test positive for Meth on drug tests.
41
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
Crushed cockroaches can be applied to a stinging wound to help relieve the pain.
31
It is possible to go blind from smoking too heavily.
50
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22