Wearing tight pants can lead to impotence in men.
120
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Redheads require up to 20% more anesthesia to be knocked out.
112
Cigarette smoke contains 4,800 chemicals, 69 of which cause cancer.
145
Each nostril of a human being register smell in a different way. Smells that are made from the right nostril are more pleasant than the left.
38
The average person has over 1,460 dreams a year!
69
Most dreams last only 5 to 20 minutes.
79
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22