Fat and thin have a lot to do with heredity: (1) If your parents are thin, I'm afraid you won't be too fat in the future; (2) If one of your parents is not too thin, you are likely to be fat; (3) If your parents are not thin, you will definitely not be thin in the future; If your parents are both fat, you will become a fat man in the future.

I was thin before I was 22. I didn't dare to recognize photos when I graduated from college, which is completely different from now. Weight at that time 108 kg. I am 32 years old, 150 kg. Genes and the like only affect future generations, not just. What you said about the fat man inheriting the thin man gene is only less likely. The key is to rely on acquired nutrition and habits. See below for details:

It doesn't matter whether you are fat or not, just let it be. There are three reasons: first, from a health point of view, the fatter the worse, the thinner the better; Second, from a professional point of view, thin people look thin, and thin people are really thin. There are many successful thin people, regardless of gender; Third, from a social point of view, fat people and thin people are the same. As long as you are confident, everyone is normal, regardless of gender.

But if I really want to get fat, I have some ways to try:

First of all, we should insist on physical exercise to make our physique better and our endocrine more balanced.

Second, make your life regular.

Third, ensure adequate sleep.

Fourth, in diet, we must adhere to three points: eat well in the morning, eat well in the afternoon, and eat less at night, especially breakfast.