### Instruction: How do you gain muscle?
### Response: Gaining muscle mass requires proper exercise and a good diet. A good diet is important to give the body the nutrient it needs in order to sustain muscle growth. On the flip side, properly stressing the muscles will stimulate them to grow. This requires a variance of different exercises to work the muscle group. Otherwise, the muscle will build resistance to an often repeated exercise, and growth for that muscle will plateau.