Fitness

If you want to add muscle and lose FAT during the same workout you should do the weight training first. Why? First of all you'll have more energy, which usually results in a more productive weight training workout. Second, there is a time span of about 60 minutes, after starting the workout, where Growth Hormone levels are slightly higher than normal. You want to take advantage of that by making the workout not last more than 60 minutes. Weight training first may hamper the aerobic exercise because your tired, but you raise your chances of building muscle, which will burn more FAT in the long run. A better way would be to do them on different days and allowing yourself adequate rest between weight training sessions.

YES! For most people, adding muscle is very difficult. Hard work, eating right, and having the right genetics are all needed to get the bodybuilder look. It also takes years, and most often a lot of steroids, to put on the kind of mass that you see in magazines. If you find yourself getting more muscle than you'd like, then you can stop training and they will shrink, due to lack of work. You can use weights, or progressive resistance, to make you stronger, faster and more explosive, as well as making yourself look the way you want. If you want bigger arms it's possible to train your arms and they'll become larger. Looking like a bodybuilder takes extreme determination and the right gene pool, it isn't something that "just happens". It is also important to note that most athletes use weights to improve their strength and their performance, and don't end up looking like a bodybuilder, even though they train very hard.