Long-term aerobic exercise will make you thinner and thinner, such as long-distance running. Look at those long-distance runners, they are as thin as anything. Therefore, it takes only ten minutes to complete anaerobic exercises such as push-ups every day, which will not play a role in losing weight, but will play a role in increasing muscles, especially chest muscles.
In addition, in addition to fitness, maintain nutrient intake, especially in protein. Eating more high-protein foods such as fish, chicken and beef will make muscles grow faster.