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
One quarter of the human brain is used to control the eyes.
43
Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
39
An average adult produces about half a liter of flatulent gas per day, resulting in an average of about fourteen occurrences of flatulence a day.
8
The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130
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
When your face blushes, the lining of your stomach turns red, too.
154
The average person who stops smoking requires one hour less sleep a night.
79