Are you still suffering from the hangover of Saturday’s workout day? Let me guess, you have probably mumbled to yourself “No Pain, No Gain” once or twice to strengthen your resolve to go back to the torture chamber many call the gym. It is true, to see the reward you have to experience hard work, which in this case, is evidenced by muscle soreness. However, listen to your body closely; because if it an unusual pain in parts of your body, it might be that something is not working right in your body. You want to know how to build muscles, start with the factors you need to heed to avoid causing your body injury or unnecessary pain.