Today, more and more people are into weight gain. It can be for aesthetic reasons or for health purposes. To know if weight gain is bad or good for you, it is always best to conduct a research about its indicators as well as of its advantages and disadvantages so you will have an idea if you're into the right thing.What experts sayAs defined, weight gain refers to the increase in a person's body weight brought by intake of too many calories, lack of physical activity such as regular exercise, or a side effect of certain types of medication. However, it can also be a result of a certain set of workout routine--such as those in bodybuilding--wherein muscles tend to increase in terms of weight. Experts say that weight gain is usually done by people because of two reasons. One, they want to build muscles for a fit body. This is very common to people who need big and bulging muscles for their jobs such gym instructors, fitness gurus, bodybuilding coaches, bouncers, bodyguards, weightlifters, and the like. Today, weight gain through body building has also become popular with the emergence of various bodybuilding contests where contestants are required to show off their muscles. The second reason why people gain weight is because of their health. This 28 page book will point you in the right direction in your quest to gain weight.