Читать книгу Pathy's Principles and Practice of Geriatric Medicine - Группа авторов - Страница 383

 Food intake is less in the elderly than in young adults because of a physiological decrease in appetite: the anorexia of ageing. This predisposes them to the development of protein‐energy malnutrition, a common entity in older adults.

 Several additional factors contribute to undernutrition, including physical and physiological changes, chronic disease, environment and other relevant social determinants of health, and iatrogenic causes such as polypharmacy.

 Chronic diseases such as dementia, depression, chronic obstructive pulmonary disease, and congestive heart failure can lead to anorexia through various mechanisms.

 Activity changes of hormones such as CCK, cytokines, and androgens have been implicated in appetite regulation and the anorexia of ageing.