Bone, Muscle, and Skin Can Be Influenced by Many Things

General FactorInfluenced byPossible Outcome
GeneticsGender (for instance, hormones)
Behavior (for instance, activity level or nutrition)
Genetic predisposition
Obesity, poor muscle tone, poor bone quality Susceptibility to disease
BehaviorSocial factors
Cultural factors
Economic factors
Political factors
Concern about appearance
Use of products to enhance appearance (for instance, cosmetics and nutritional supplements)
Risky behaviors (for instance, tattoos, body piercing, smoking, overexposure to sun)
EnvironmentGeography (for instance, elevation, latitude, or rural versus urban setting)
Exposure to UV light
Exposure to chemical pollutants

From: Information about the Musculoskeletal and Skin Systems

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