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Motor tics are spasmodic contractions of muscles, which typically involve the face and are habitual. Examples include squinting the eyes, grimacing, or even turning the head. Sometimes motor tics ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Rena Zito, Elon University (THE CONVERSATION) John Davidson, whose life inspired the ...

This post was written by Chelsea Dale, M.S. Taylor’s mother noticed that her 8-year-old child was constantly sniffing but did not have a cold or allergies and was excessively blinking, head nodding, ...