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You might have seen others, or yourself, cracked your fingers crackling like a habit, and when you're done, feel comfortable. That person has

Taking vitamins helps you stay healthy, or microwave causes cancer and everyone should drink 8 glasses of water a day ... All of these are misconceptions.

You have seen people with deformities, missing fingers, but certainly never met the person who owns all 5 fingers the same.

From an early age, we have been taught to eliminate bad habits, such as spitting, belching, ... So you may be surprised to learn that some of the habits are considered was