Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
While 7 men in 100 have some form of color blindness, only 1 woman in 1,000 suffers from it.
50
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
If your stomach didn't produce a new layer of mucous every two weeks, it would digest itself.
33
There are more bacteria in your mouth than there are people in the world.
60
Redheads require up to 20% more anesthesia to be knocked out.
112

