1. Through their own efforts, children have gained better physique, which is the best and most anticipated result. Modern people are better in physique, physical fitness and various qualities than people thousands or even hundreds of years ago. These advances are not only the result of food and genetic variation, but also the result of the overall efforts of mankind.

You know, in the first Olympic Games, there were no women in many middle and long-distance running events, because they were afraid that their bodies could not stand it. What about now? Marathon has many female fans.

This kind of progress can't be achieved by simple replication, variation and research and analysis.

If you work hard and get a better physique, but the inheritance of some genes has not changed, then the physique of the next generation is still not good. At least you have gained experience that can help your child improve from adolescence.

From this perspective, it is not a waste to start working hard when you find yourself weak, but it can still be used as a reference for future generations. The result of severe analysis is the worst, but that's all. Why not work hard?

In the sixties, seventies and eighties, premature babies and people born with weak constitution at home and abroad eventually became bodybuilding champions. Even if the offspring of these people are in poor health, do you think being a champion father can provide reference for children?

The above is about training. For parents who are going to raise children, the same is true of diet. Even if I didn't like fitness in the past, I began to adjust my diet and life schedule purposefully one year before I was ready to consider having children to minimize the negative impact on my children.