Individuals with low-muscle mass have a higher risk of death than others with a similar body mass index. Moreover, differences in muscle mass explain the "obesity paradox," the counter-intuitive finding that that being overweight or obese can reduce risk of death.

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Individuals with low-muscle mass have a higher risk of death than others with a similar body mass index. Moreover, differences in muscle mass explain the "obesity paradox," the counter-intuitive finding that that being overweight or obese can reduce risk of death.