Every young boy has dreamnt of having big muscles. When they see movies like Predator or Rocky, where Stallone and Arnold Schwarzennegar are flexing there massive muscles, really impresses upon them the art of bodybuilding. Having big muscles is something that every man wants. Its the sign of power and strength.
And be careful, there are many unhealthy products on the market that advertise fast results, even highly illegal drugs, but you don't need any of that to excel at bodybuilding. Avoid illegal substances and stick to products recommended by professionals, rather work hard, stay honest and earn the muscle gain!
You'll have to start by joining your local gym or setting up your own home gym. If you'll be joining the local gym, arrange a meeting to go check it out before you join. They should have a proper cardiovascular section and a decent weight training section. If you plan to set up a home gym, the equipment you will be able to get will depend on what the size of your budget is.
Consult with professionals in your area to help you combine an exercise routine specifically for a beginner. You might feel up to starting out with a hectic schedule, but you have to start at the bottom to ensure maximum growth. A weekly schedule will consist of cardiovascular and weight training, one routine where you frequently increase the weight mass will most probably be suggested. Many professionals feel you negatively affect your muscle gains if you change your routine too often!
A personal trainer or fitness specialist will be able to take your body fat analysis and test your metabolic rate - then they can prepare a meal or deit plan customized only for you based around your goals and your body's needs. If you want to gain muscle mass you will need to eat the right foods and supplements. Supplements contain valuable vitamins and nutrients which will help you recover fast after the intense exercise sessions. If you struggle to recover due to an insufficient diet, your gains will suffer.
The first thing you need to do is to just get started, then learn the rest of the factors involved in this sport as you progress. Spend time reading up on bodybuilding professionals and their journey to the top, it will serve as amazing motivation but you'll also learn a great deal from them regarding exercise, food and in general, not giving up!