Am I Normal?habits
I bite the inside of my cheek out of habit and can't seem to stop
Cheek biting is a body-focused repetitive behaviour (BFRB) that provides a form of oral stimulation related to stress regulation. The inside of the cheek contains proprioceptive nerve endings that, when pressed or bitten, provide a feedback loop similar to other stimming behaviours. Most cheek biters are unaware they're doing it until the soreness arrives.
Have you ever done this?
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Related fact
Approximately 750 million people worldwide are estimated to have some form of chronic cheek-biting habit. It's one of the most common oral habits alongside nail-biting and lip-chewing.