12 Popular Science Myths Debunked

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11.Arthritis

Don’t crack your knuckles, it will give you arthritis. Donald Unger was so sick of this myth that he started cracking knuckles on his left hand while leaving his right one alone. He’s been doing it for 60 years and published a paper confirming that there was no difference in the health of his joints. There’s some dedication for you.

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