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13 health rules you can break

Published On: Jan 27 2013 02:32:58 PM CST   Updated On: Jan 28 2013 01:00:00 AM CST

Some health rules are followed religiously, but really have no medical or scientific foundation at all. Here are 13 popular rules that aren't as hard-and-fast as you might think.

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Don't crack your knuckles. The myth is that this habit will cause arthritis. It may be annoying, but no medical studies prove cracking or popping your fingers will lead to arthritis.

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