GRT 2111 Lecture Notes - Lecture 4: Atrophic Gastritis, Lean Body Mass, Sarcopenia
2 Feb 2017
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Document Summary
Life cycle habits and nutrition within older adults. Male life expectancy is 76, female is 81. Genetics: determines rate of cell maintenance and repair, can influence the development of some chronic diseases. Environmental factors: things like excessive sun exposure, smoking contribute to oxidative stress, cause cellular damage and lead to cell mutation and death. Lifestyle factors: make a person more susceptible to illness, stress can cause high cortisol levels. Changes in body composition: commonly gain weight and deposit fat in abdomen. Dietary excess, poor food choice, and physical activity contribute: sarcopenia in elderly. Regular physical activity can minimize effects of this. Immune function decreases: nutrient deficiencies of multiple nutrients due to inadequate diet contribute to failing immune system. Sensory abilities decline: vision, hearing, taste, and smell, can result in decreased food intake. Gi changes: some changes impact chewing, swallowing, saliva production, digestion, or absorption, compromised health of gi can lead to atrophic gastritis, constipation, gas, bloating.
