Obesity is a result of many things. It’s mostly hereditary whatever you are born with, so the comment you are answering is right.

Just like other cases of “unhealthy”. Just like with them, though, it’s possible to find one’s optimum in food and sports and sleep to feel better, and a person who feels better is usually more attractive.

But looking like models you can find in the interwebs is just not possible if you are not already like them.