· It takes about 20 seconds for a red blood cell to circle the whole body.
· It's been proven that people can lessen reactions to allergies by laughing.
· Laughing lowers levels of stress hormones and strengthens the immune system.
· Six-year-olds laugh an average of 300 times a day.Adults only laugh 15 to 100 times a day.
· In the middle ages, people would pin the name of their sweetheart to their sleeve on Valentine's Day and keep it there for a week, hence 'wearing their heart on their sleeve'.
· It was during the Victorian era that the formerly nude Cupid was redesigned as wearing a skirt.
· The human heart creates enough pressure while pumping to squirt blood 30 feet!!
· February 1865 is the only month in recorded history not to have a full moon.
· Tomato Ketchup was once used as medicine in the United States. Was sold as "Dr.Miles Compound Extract of Tomato"
· When you blush, the lining of your stomach also turns red
· Dating back to the 1600's, thermometers were filled with Brandy instead of mercury
· The quartz crystal in your wristwatch vibrates 32,768 times a second
· An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
· Shoe sizes were standardized in Britain in 1885
· The average person's eyes will be closed about 30 minutes a day due to blinking.
· Women blink nearly twice as much as men.
· Every day 200 million couples make love, 400,000 babies are born, and 140,000 people die.
· There are at least 40 known carcinogens in cigarettes.
· The earliest British expeditions tackling Everest wore tweed jackets, woolen underwear, and leather boots.
· The amniotic fluid that surrounds a baby in the womb is completely replaced every three hours.
· During World War II, twice as many fighter pilots were killed during training than combat
· In 1962 an outbreak of contagious laughter in Tanganyika lasted for six months and caused schools to be closed
· A nautical mile measures 6,080 feet while a land or statute mile is 5,280 feet
· No one can drown in the Dead Sea. It is 25 percent salt, which makes the water very heavy
· Plants watered with warm water grow larger and more quickly than plants watered with cold water
· Earth's oceans contain 7 1/2 million tons of gold, dissolved in the water
· Children who are breastfed tend to have an I.Q. seven points higher than children who are not.
· The bird flu virus could evolve into a form that is easily spread between people, resulting in a highly contagious and lethal disease.
· The Chinese, in olden days, used marijuana only as a remedy for dysentery.
· If you are right handed, you will tend to chew your food on the right side of your mouth. If you are left handed, you will tend to chew your food on the left side of your mouth.
Contributed by asharaj53 @ gmail.com
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