The Thin People's Weight Gain and Muscle Gaining Fitness Program series is aimed at thin people and ordinary people who want to gain weight.
The action part of this plan mainly uses dumbbells. If you are in the gym, you can use barbells to replace some of the dumbbell movements. For the diet part, the plan is based on a daily natural diet combined with muscle-building powder. You can modify the plan appropriately according to your actual situation.
Thursday: Shoulder and chest muscles
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