WHAT DOES MY BODY TYPE MEAN?
There are three basic human body types: the endomorph, the mesomorph, and the ectomorph. Despite what it might feel like at times, you're not completely bound to one category or the other. Your lifestyle, genetics, history, and training style all play a part in how you look, and you can definitely change it over time.
That said, many of us to have certain tendencies toward one group or the other. Here's what typifies each one:
An ectomorph tends to be thin, and struggles to gain weight as either body fat or muscle. They can eat piles of food and stay looking the same, even when gaining muscular weight is their biggest goal. People who battle to gain muscle are often known as "hardgainers."
Ectomorphs tends to have a lean build, long limbs, and small muscle bellies. Even if an ectomorph manages to put on weight, they may still look skinnier than they are, particularly in the calves and forearms.
Being an ectomorph doesn't mean you're doomed to be weak, though. You can still get remarkably strong, and you can be every bit as fit and healthy as someone who looks larger and more muscular. But if you want to gain weight, you'd better be prepared to eat like you've never eaten before.
The mesomorph has a middle-of-the-road build that takes the best of both worlds. They tend to have wide shoulders, a narrow waist, relatively thin joints, and round muscle bellies.
In short, if you're a mesomorph, you have a natural tendency to be fit and relatively muscular. Does this mean you can do nothing, eat everything, and get away with it forever? Definitely not—and you're not necessarily healthier than the other two types, either. But you may be able to "bounce back" from being out of shape more easily than the other two body types, gaining muscle and burning fat with comparative ease.
The endomorph tends to gain weight and keep it on. Their build is a little wider than an ectomorph or mesomorph, with a thick ribcage, wide hips, and shorter limbs. They may have more muscle than either of the other body types, but they often struggle to gain it without significant amounts of accompanying body fat. If you ever feel like you gain 5 pounds simply walking by a donut shop, you may be an endomorph.
This definitely doesn't mean that an endomorph can't be healthy. They can be every bit as strong, healthy, and capable as the other two groups, and may actually have some strength advantages due to their additional muscle mass. But if and when they decide to lean out, it'll take hard work!