Bodybuilding is one of the greatest and oldest sports in the world. It makes you healthy and in good shape. As a bodybuilding beginner, it gives you a lot of confidence, and the coolest thing about bodybuilding is it fits everyone: that means whether you are 20 or 50, male or female, you can do bodybuilding beginner workouts and build muscle, lose fat, gain weight, or just get in shape. However, it could turn to be one of the hardest sports in the world, if a bodybuilding beginner expects to hit the gym today and wake up next morning became like "Schwarzenegger"
The most commonly used AAS in medicine are testosterone and its various esters (but most commonly testosterone undecanoate , testosterone enanthate , testosterone cypionate , and testosterone propionate ),  nandrolone esters (most commonly nandrolone decanoate and nandrolone phenylpropionate ), stanozolol , and metandienone (methandrostenolone).  Others also available and used commonly but to a lesser extent include methyltestosterone , oxandrolone , mesterolone , and oxymetholone , as well as drostanolone propionate , metenolone (methylandrostenolone), and fluoxymesterone .  Dihydrotestosterone (DHT; androstanolone, stanolone) and its esters are also notable, although they are not widely used in medicine.  Boldenone undecylenate and trenbolone acetate are used in veterinary medicine .