First of all, pregnant women must not go to the gym, because the baby in the belly is very fragile at this time. If pregnant women go to the gym, they may miscarry if they are not careful, so even if they want to exercise again, don't go to the gym. You can walk more.

The second type is a girl who comes to have a period, because at this time, the girl is very uncomfortable, and this time is not suitable for strenuous exercise, because if the exercise is too intense, it will easily lead to more blood flow and cause various diseases.

Some people are injured and have not fully recovered, because many people will hurt their knees when doing some sports. This kind of people are not suitable for going to the gym to do strenuous exercise, because it will make their knees hurt more.

Moreover, these people with heart disease and high blood pressure are not suitable for exercise, because these people can't accept the stimulation, but the exercise will be very intense and their bodies may not be able to bear the pressure.

And obese people, they are not suitable for fitness, because before fitness, we must lose weight. If you don't lose weight and exercise directly, not only can you not do some exercise, but your body can't bear the pressure brought by fitness.

At this time, let the body fat rate approach normal first, and then start fitness, otherwise it will do great harm to the body.

There are many old people who are not suitable for fitness, because when they get older, their bones will become very fragile. At this time, if they go to fitness again, it is easy to cause fractures, and they can't do many exciting projects.