My cousin went to the doctor and the doctor told him that he needed to start working out and speak with a body builder first, if possible. It took him a few days to find the gym that he was satisfied with. One of the first things the body builder discussed with him was NO2 Black to take to help add new lean muscle. He also showed him different exercise machines to use, too. There are many different exercises and machines that he has started using but is always sure he continues taking the NO2 Black daily. It is so easy to take, since it comes in pill form and he can take it with him wherever he goes and all he has to do is have something to drink, and does not have to measure or mix anything. So far, he has had no side effects with the NO2 Black and it seems to be helping him a lot.