My shoulders feel really weak. What exercise I can do to strengthen them? 

If your shoulder feels weak but there is no pains in the shoulder as you move it, there are exercises you can do to help strengthen the shoulder area. Exercise to strengthen the rotator cuff will help your shoulder feel stronger and more stable. Some examples of shoulder exercises include internal and external rotation, empty cans, and reverse flys. To help strengthen all of the shoulder area movements like bench press, push-ups, and military press will help strengthen the front, side, and middle of the shoulder joint. Start with light loads and perform 12-15 repetitions until your shoulder strengthens up. It’s important to remember that your soft tissues like tendons and ligaments take longer to adapt to lifting than your muscles, so do not increase the weight by more than 5-10% between weeks. As you get stronger, gradually increase the weight and decrease the repetitions until you are closer to the 5-7 repetition range.