When you come to the gym for the first time, there will be a special coach to do the body side. First, you will measure your heart function. Why measure heart function? Because the amount of exercise arranged by the coach must be within the range of your heart load, so that the colleagues who achieve the effect will not be too tired. . You don't need to come here for scientific exercise every day. One hour at a time, two to three hours a week. Is it okay? Just answer it like this.