If you don't exercise at 40, you will regret "Why didn't you start exercising before 10" at 50. "The best time to plant trees is 10 years ago and now." Age is not a problem, you can exercise muscles, but with the growth of age, muscles grow slowly and recover slowly. But then again, we are forty years old, and we don't want to compete with young people to play bodybuilding competitions. We must be healthy.
The combined exercise mode really made my weight drop rapidly, and kept an ideal weight range, 78kg in summer and 82kg in winter. At the same time, I don't eat staple food for dinner, but change to sugar-free fruits and vegetables. Yes, I'm sure I can. First, we must persist. Second, we should arrange our diet reasonably. There is nothing wrong with exercising muscles in your forties! As long as you can stick to exercise, have a systematic training plan, quit smoking and drinking, and keep up with nutrition, you will feel brand-new after one year! It should be possible. As long as you keep exercising and eat properly, you will also exercise your muscles at the age of 50! It's never too late to start, as long as you persevere, you will certainly gain a lot.
As long as there is no basic disease, after forty, you should exercise your strength in a balanced way, that is, muscles. Whether it can be big or not depends on physical condition and investment. Do your best. At any time, muscles don't cheat, no pains, no gains, reasonable exercise, proper nutrition and adequate rest. In addition, muscles will not grow from scratch, but only from thin to thick, from submerged in subcutaneous fat to exposed corners.