Nutritional factors in physical and cognitive functions of elderly people

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Abstract
The quality of life of aging individuals depends profoundly on their capacity for physical mobility, mental alertness, and cognitive function. Independence and self-esteem are strongly determined by physical and mental capacities. Stimulated by reports of declining function with age, investigators have examined the relationships between lifestyle factors and maintenance of functional status. Growing evidence supports the view that continued physical activity and good nutritional status are important determinants of physical and cognitive function. It is possible that some of the decline in cognitive function associated with aging is preventable or reversible with improved vitamin nutriture, especially vitamin B-12, vitamin B-6, and folate. It might well be argued that the most practical outcome of research on the relationship of diet and nutrition to the aging process would be a better understanding of the ways in which our behavior can maintain a vigorous quality of life.