Cracking knuckles: Your stepson has a comorbid condition of ocd along with his adhd. Seek help from a psychotherapist or psychatrist.
Answered 3/17/2014
4.3k views
Good luck: This is an issue of chronic anxiety and has no physical cause. It causes no harm to the joints but obviously annoys anyone who has to listen to him do it. Speak with his therapist about it but the options are not great.
Answered 3/23/2014
4.3k views
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