For those of you that don’t know, there are primarily three body types that exist. You, the skinny guy, fall under the ectomorph category. Characteristically ectomorphs have thin and long bones, less fat and find it hard to put on fat or muscle. This, let me tell you is a good thing. Endomorphs and mesomorphs (explained below) find it hard to burn off stubborn fat, especially in their lower belly and sides which alone can take months of strict dieting and cardio to shift. This is something you won’t have to struggle with if you happen to increase body fat to an unwanted level, because you’re blessed with a fast fat burning metabolism.