Between the ages of eighteen and twenty-eight, you usually just go to college and go out to work for about five years, during which you have enough spare time and energy. So you can make a detailed muscle fitness plan and then implement it according to your own plan every day. After a long time, there will be obvious changes, but it will take at least one and a half years to see obvious changes, so you insist.
Muscle fitness is a process of destroying and regenerating muscle fibers through high-intensity exercise. The total number of muscle cells in each person is a relatively fixed amount. If you want to develop your muscles, you must make a very careful fitness plan. If you feel that you don't know how to practice muscles scientifically, then you can go to the gym and let a fitness instructor with professional knowledge teach you how to practice muscles scientifically and quickly. Another advantage of the gym is that the fitness facilities in the gym are perfect.
Exercise is a long-term plan, so you really have enough time. Four years in college, with enough spare time, you can exercise without affecting your study. There is enough time and energy in college, depending on whether you can persist, because muscle fitness is a very hard process, but when you have the effect, you will have a great sense of accomplishment. Another advantage of college spare time fitness is that you can make more rational use of your spare time, because fitness is a very meaningful thing, and you will be very grateful to yourself after many years.