First of all, Americans are famous for their love of fitness, and it is precisely because of their culture and diet that many Americans like fitness. Generally speaking, Americans prefer fast food and beef, because beef is a kind of high-energy meat in protein. Americans have a lot of muscle mass when they exercise because they eat beef, which is also their food culture.

Their general fitness is really differentiated according to their age, because everyone needs to do some appropriate exercise according to their age. However, some elderly Americans still like young people's sports to exercise their muscles, but they can't bear it for a long time and need to take some drugs to maintain it, because after all, the growth of age will reduce some functions of the body. Even if your muscles are developing, your bones won't allow you to do some more challenging sports.

Moreover, Americans have strong family values. As they get older, they will also go to work, so the time for fitness will be gradually compressed, which is one of the reasons for the age differentiation. In fact, fitness is a sport that varies from person to person. If you think you are strong, you can practice some equipment. If you feel weak, you can do some aerobic exercise. This is normal.

But be careful not to try to be brave, because if you try to be brave, your body will be hurt, so you will lose more than you gain. You must pay attention to the intake of nutrition during exercise. Don't exercise if you don't have enough nutrition, because exercise is a very nutritious thing