The larynx, or the voice box, is made up of a pair of vocal folds that vibrate when air passes in between them, producing voice. The vocal folds are two adjacent bands of muscles atop the windpipe and beneath the tongue....

Autistic children have difficulties with social interaction, problems with verbal and nonverbal communication, and repetitive behaviors or narrow, obsessive interests. The hallmark feature of autism is impaired social in...

Autism varies widely in its severity and symptoms and may go unrecognized, especially in mildly affected children or when it is masked by more debilitating handicaps. Doctors rely on a core group of behaviors to alert th...