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Overall expansion of body fat, often with depletion of muscle mass, physical strength, and agility. It should be distinguished from obesity, which is expansion of body mass involving fat tissue, muscles, and viscera. Adiposity is common in affluent societies, where it is usually confused with and called “obesity.” Adiposity is a disorder of lifestyle, whereas obesity often runs in families and may be genetically determined.

Subjects: Public Health and Epidemiology.

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