Fitness is not about diligence, it is harmful to go twice a day, and your muscles are always in a state of tension, and you can't relax effectively, which doesn't stimulate you. Didn't the coach there tell you? Just making money?

The frequency of going to the gym should be reasonably customized according to the intensity of each exercise.

1, if you only jog on the treadmill every day 1 hour, even if you take part in other sports, but the intensity is not great every time, you can insist on going to 2 every day. If you take part in high-intensity sports every time, such as badminton, weightlifting and sandbags, and run for more than two to three hours, you need to go every other day or even two days, because if you insist on high-dose and high-intensity sports every day instead of professional athletes, it will hurt your muscles.

In order to exercise muscles, don't exercise the same part every day. If you give a certain part enough exercise stimulation that day, then the muscles in this part need to be separated for more than 48 hours before they can exercise again. Muscles grow at rest, so continuing to exercise the next day will affect the appearance of muscles. For example, you can't practice your chest muscles the next day, but you can practice your legs, back, abdominal muscles and so on. So you can practice your muscles every day, but you can't practice the same part every day.