http://www.cdc.gov/aging/
The United States is on the brink of a longevity revolution. By 2030, the proportion of the U.S. population aged 65 and older will double to about 71 million older adults, or one in every five Americans. The far-reaching implications of the increasing number of older Americans and their growing diversity will include unprecedented demands on public health, aging services, and the nation’s health care system.
Chronic diseases exact a particularly heavy health and economic burden on older adults due to associated long-term illness, diminished quality of life, and greatly increased health care costs. Although the risk of disease and disability clearly increases with advancing age, poor health is not an inevitable consequence of aging.
Much of the illness, disability, and death associated with chronic disease is avoidable through known prevention measures. Key measures include practicing a healthy lifestyle (e.g., regular physical activity, healthy eating, and avoiding tobacco use) and the use of early detection practices (e.g., screening for breast, cervical, and colorectal cancers, diabetes and its complications, and depression).
Critical knowledge gaps exist for responding to the health needs of older adults. For chronic diseases and conditions such as Alzheimer's disease, arthritis, depression, psychiatric disorders, osteoporosis, Parkinson's disease, and urinary incontinence, much remains to be learned about their distribution in the population, associated risk factors, and effective measures to prevent or delay their onset.
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