In fact, this problem is also a problem of many office workers. Because they are busy all day, they can't relax physically and mentally. Exercise is the right choice. There are many kinds of exercise methods, depending on your own situation, what you like and what is suitable for you. The fitness Olympics and swimming you mentioned are very beneficial exercise methods for people. Of course, we know that fitness is usually carried out in health clubs because some fitness equipment is dangerous. You need the guidance of a fitness instructor. Fitness requires more investment than swimming, depending on whether you can afford it. Fitness is mainly for shaping the body, while swimming is mainly for people's heart and lung function, and of course there are other functions. Personally, swimming will be a good choice, especially now the weather is suitable for this sport, so I recommend swimming, of course, your own choice is the most important!