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If you recently started a weightlifting program, you’re probably pretty eager to see signs that your body is building muscle. Patience, young grasshopper. Each time you lift, your muscles go through a recovery period that makes them bigger and stronger. However, this doesn’t start right away, and how long it lasts depends on a few factors. Protein is the main component of all your body’s tissues, including your muscle tissue. Lifting weights causes damage to your muscles that breaks down the proteins