A six-week study on compulsive behavior found that gently rubbing your fingertips, palm, or back of the arm at least twice a day could cut down on your habit.

Fifty-three percent of the study said the technique helped them cut down on nail biting and skin picking. 

The study’s author said, “The rule is just to touch your body lightly. If you’re under stress, you might perform the movements faster, but not with more self-applied pressure.”

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