<unk> s or speech impairments are a type of communication<unk>  in which normal speech is disrupted. This can mean stuttering, lisps, etc. Someone who is unable to speak due to a<unk>  is considered mute.<unk> s affect roughly 11.5% of the US population. Speech is a complex process that requires precise timing, nerve and muscle control. The ability to understand language and produce speech is coordinated by the brain. A person who suffers from a stroke, an accident or birth defect may have speech and language problems.
Speech disorder
Language disorder
Speech and language impairment
Speech delay
Motor speech disorders
Language delay
Infantile speech
Nonverbal learning disorder