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
You mostly breathe from only one nostril at a time!
75
The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
It is possible for you to survive even after the removal of the spleen, the stomach, one kidney, one lung, 75% of the liver, 80% of the intestines, and almost every organ from the pelvic and groin area.
218
There are about 1,400 different species of bacteria in your belly button.
10