Skinny people, muscles, ectomorphs? Confused? No need to be it is quite simple. Ectomorph is the scientific name given to those bodytypes that are naturally skinny and lithe due to their high metabolism. This means that if you are the sort of guy that finds it really hard to gain weight via fat or muscle you are mostly likely an Ectomorph that has a body that consumes energy from food so fast there is nothing left to go to fat and also nothing left to feed your muscles when they need it.

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