If you reach a great girth through exercise, you think your muscle fibers are thick, which was the case 10 years ago. If you insist on exercising, you can change your exercise style, focus on your core strength and do more stretching. Stretching local muscles after aerobic and anaerobic training can relax and stretch lines.
If you are born with strong meat, you have a lot of sarcoplasmic content, which is related to development and heredity. In the process of exercise, aerobic exercise, running and swimming are the main methods. Pay attention to stretching and relaxation.