A member asked:

Can being underweight cause tiredness and exercise intolerance?

A doctor has provided 1 answer

See below: Yes: Underweight might be secondary to or symptomatic of an underlying disease. Unexplained weight loss needs evaluation asap. Severely underweight individuals may have poor physical stamina and a weak immune system, leaving one open to infection. Malnutrition due to poor/inadeq intake, genetics, underlying mental or physical disease need to be ruled out.

Answered 11/28/2017

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Could being underweight cause chest pains?

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