![]() ![]() These include a diminished number of cerebellar cells and atrophy of the temporal lobes and precentral gyrus ( Slawinski, 1994). The typical aging process also involves neurological changes, both structural and functional. Research suggests that, after the third decade of life, there is a linear decline in the function of the cardiovascular, respiratory, skeletal, and muscular systems ( Ramig et al., 2001). This requires an understanding of how aging affects the systems that support communication. Because communication disorders in adults become more prevalent with age, it is essential to understand patterns of typically aging speech in order to distinguish healthy speakers from those with disorders. ![]() ![]() Department of Health and Human Services, Administration for Community Living, 2017). It has been predicted that, by 2020, approximately 77 million people in the United States will be aged 65 years or older ( U.S. ![]()
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