If you feel that you are so busy with school that you can’t go to the gym or anywhere that has any type of weight then you can always use the weight of your own body. There are many different workouts that you can do with nothing else but yourself and maybe a chair. One really good workout is push-ups. These really focus on the chest muscles, shoulder muscles, and even abdominals. Another workout that will workout the triceps are tricep extentions using a chair. You keep your heals on the ground, with your legs straight out in front of you, put your hands on the chair and push yourself up. Anouther really good body weight workout are pull-ups. In order to do these though you would need a bar of some sort. Pull-ups are where you just pull yourself up. Then there are always ab workouts such as crunches, six inches (this is where you hold your feet six inches off the ground with you back straight on the ground and your legs straight), leg raises, torso twists and others that don’t involve any weight at all.