Synthesis and Conclusion

The number of older people is increasing in all regions and all societies of the world. Advancing age produces senescent changes in cellular function that are reflected in a declining capacity of all physiological systems. The increased prevalence of disease in older populations Aging is a major risk factor for disease but does not necessarily lead to age-related diseases.

All physiological systems are intrinsically interrelated in maintaining the health and function of the organism. Aging is associated with a loss of complexity in the dynamics of many physiological systems. It has been speculated that the basis for the syndrome of frailty in older persons may result from a reduced ability to adapt to internal and external stresses of daily life due to the loss of dynamic coordination among the interrelated physiological systems.

The alterations in physiological functions with aging have important implications for absorbing, retaining, and utilizing nutrients. The extent to which dietary patterns and nutrient intakes are accelerating or retarding the rates of functional decline is a matter of ongoing investigation in ger-ontological nutrition and physiology.

See also: Aging. Brain and Nervous System. Cytokines. Older People: Nutritional Requirements; Nutrition-Related Problems; Nutritional Management of Geriatric Patients. Osteoporosis. Vitamin K.

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