Chemical reactions within the body produce oxidants (free radicals), which are believed to contribute to a number of health problems such as cancer, tissue damage and premature aging.
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Antioxidants (or anti-oxidation agents) can reduce the effect of oxidants by binding together with these molecules, decreasing their destructive power. Antioxidants can also help repair damage already sustained by cells. Certain antioxidant enzymes are believed to be produced within the body, while others we must get from our diet
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The bones in your body are not white - they range in colour from beige to light brown. The bones you see in museums are white because they have been boiled and cleaned
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The muscle that lets your eye blink is the fastest muscle in your body. It allows you to blink 5 times a second. On average, you blink 15 000 times a day. Women blink twice as much as men.
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The length from your wrist to your elbow is the same as the length of your foot
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Of the more than $50 billion worth of diet products sold every year, almost $20 billion are spent on imitation fats and sugar substitutes
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An onion, apple and potato all have the same taste. The differences in flavour are caused by their smell
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Your heart beats 101,000 times a day. During your lifetime it will beat about 3 billion times and pump about 400 million litres (800 million pints) of blood.
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China uses 45 billion chopsticks per year. 25 million trees are chopped down to make 'em sticks
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More personal telephone calls are made on Mother's Day in the USA than on any other day in any other country
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Almost 1,2 billion people are underfed - the same number of people that are overweight to the point of obesity.
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Dogs are mentioned 14 times in the Bible, and lions 55 times, but domestic cats are not mentioned at all
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The hair perm was invented in 1906 by Karl Ludwig Nessler of Germany
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The first electronic mail, or "email", was sent in 1972 by Ray Tomlinson. It was also his idea to use the @ sign to separate the name of the user from the name of the computer
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Golf the only sport played on the moon - on 6 February 1971 Alan Shepard hit a golf ball
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Do you know the names of the three wise monkeys? They are: Mizaru (See no evil), Mikazaru (Hear no evil), and Mazaru (Speak no evil).
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Eskimos use refrigerators to keep food from freezing.
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The sentence "The quick brown fox jumps over the lazy dog" uses every letter of the alphabet
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Lightning strikes men about seven times more often than it does women.
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The pleasant feeling of eating chocolate is caused by a chemical called anadamide, a neurotransmitter which also is produced naturally in the brain.
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The US nickname Uncle Sam was derived from Uncle Sam Wilson, a meat inspector in Troy, New York.
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The first English dictionary was written by Samuel Johnson in 1755
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Picasso could draw before he could walk and his first word was the Spanish word for pencil
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The Sahara desert expands at about 1km per month
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The opposite sides of a dice cube always add up to seven
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The electric chair was invented by a dentist
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If all your DNA is stretched out, it would reach to the moon 6,000 times
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A person remains conscious for eight seconds after being decapitated
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A dog was the first in space and a sheep, a duck and a rooster the first to fly in a hot air balloon
