Your body type matters most people are a blend of two body types, with one being more dominant. Your body type is determined by both your skeletal frame, body composition which is your natural propensity to be more muscular or store more fat.
Knowing the dominant aspects of your body type may help you meet your diet and fitness goals.
Ectomorphs tends to have a lean build, long limbs, and small muscle bellies, they naturally have a higher insulin sensitivity to process carbs. Although they appear skinny, they can actually have higher body fat than one might expect.
Ectomorphs have a difficult time putting on muscle mass because their metabolism has a tendency to run higher than other body types.