The benefits of fitness mainly include improving immunity, reducing the incidence of respiratory diseases and shaping, but fitness also has disadvantages, such as joint and muscle damage.

First, the benefits of fitness

1. Improve immunity

Fitness can help promote the body's metabolism, thus effectively improving the body's resistance.

2. Reduce the incidence of respiratory diseases.

In the process of fitness, it is helpful to exercise lung function, increase vital capacity and reduce the occurrence of respiratory tract infection, lung tumor and other diseases.

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Through fitness to help eliminate excess fat in the body, and increase muscle content, so that the body looks more perfect.

If the exercise mode is wrong, such as not stretching before and after exercise, excessive exercise, etc. , may lead to joint or muscle damage, aggravate the feeling of physical discomfort.

Second, the disadvantages of fitness

1. Muscle strain: Improper exercise or no warm-up before exercise may lead to muscle strain.

2. Joint injury: improper exercise will cause joint injury in severe cases, and exercise with large joint wear may also cause joint injury. If joint injury occurs, you should seek medical attention immediately and take corresponding treatment measures according to the different severity of the injury.