How to exercise shoulder muscles to be healthier? What should I pay attention to?

If you want to exercise shoulder muscles, it is necessary to do some repetitive or even large shoulder movements, or even chest expansion movements, because when your arms and chest are moving, they will pull your shoulders and coordinate the movement. It's better to lift weights or even dumbbells. Pay attention to strengthening energy conversion during exercise. Eat more protein food when eating, especially beef. Pay attention to the intensity of one-time exercise.