Related Experiment Video
Updated: Jul 11, 2026

Validation of a Psychosocial Intervention on Body Image in Older People: An Experimental Design
Published on: May 31, 2021
The anorexia of aging
1Department of Medicine, University of Adelaide, Level 6 Eleanor Harrald Building, Royal Adelaide Hospital, North Terrace, Adelaide 5000, Australia. ian.chapman@adelaide.edu.au
Abstract:
Undernutrition is common in the elderly, particularly those in nursing homes and other institutions. It is associated with substantial adverse effects. The age-associated physiologic reduction in appetite and food intake, which has been termed "the anorexia of aging," contributes to the development of pathologic anorexia and undernutrition. This article reviews age-related changes to appetite, food intake, and body composition; undernutrition in the elderly; and the factors contributing to physiologic and pathologic anorexia and undernutrition.
Related Concept Videos
Anorexia Nervosa
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
The Effect of Aging on Tissues
Bone Disorders
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Aging
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Bulimia Nervosa
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution

