In fact, bones are like parts that combine our bodies, and joints are the parts that connect them. It is normal for joints to wear out due to frequent activities, but just like the oxidation caused by every breath, it not only needs the body, but also ages the cells in the body. A person with healthy body and organs will eventually die of organ failure (I am not a doctor, I can't explain it professionally, but that's what I mean), but will we be unable to breathe because of this? Give up eating because of choking? The answer is definitelyno. Similarly, it is the same for you to run. Six kilometers a day is not much, but it is very good for your health. It speeds up your metabolism, burns calories and makes you feel happy and cheerful. Isn't that great?

If you are under 45, there is absolutely no problem. Just stick to it and try other aerobic training methods to increase the interest of exercise. Since you are in the gym, why not make full use of the conditions of the gym, take a bicycle class, elliptical machine, mountain climbing machine, do yoga, aerobics, aerobic dance and so on for women, and do barbell exercises and step exercises for men. In addition, if there are conditions, the effect of equipment training is better than aerobic training, which is a better way.

If you are over 45 years old, it is not recommended that the training intensity is too high, and it is better to control the time within one hour. Jogging and brisk walking are usually enough. Based on relatively steady breathing.

Well, that's it. I can't say how professional I am, but my family is in the fitness industry and I'm impressed, haha. I hope I can help you.