RT Book, Section A1 BILLEK-SAWHNEY, BARBARA A1 SAWHNEY, RAJIV A2 Kisner, Carolyn A2 Borstad, John A2 Colby, Lynn Allen SR Print(0) ID 1196332989 T1 The Older Adult: Physical Activity and Exercise T2 Therapeutic Exercise: Foundations and Techniques, 8e YR 2023 FD 2023 PB F. A. Davis Company PP New York, NY SN 9781719640473 LK fadavisat.mhmedical.com/content.aspx?aid=1196332989 RD 2024/03/28 AB Globally, the population has been aging and is anticipated to continue to age. This was characteristic of the United States until COVID-19 when the average lifespan decreased. Despite this, 16.5% of the population in the United States is over 65 years of age. Aging is a universal, developmental gift of 20th-century science and technology. Prior to COVID-19, the introduction of antibiotics, insulin, vaccinations, modern surgical techniques, and other medical advancements, resulted in adults living longer.