O.K. here is some scientific data for you. I am not quoting this because I do not have the text here in front of me but it will closely relate to refference materials.
If you juice prior to the age of 22-25 the most common IRREVERSIBLE side effects are:
1) Stunted growth. The red marrow(developing/young marrow) will be damaged. Red marrow is found in adolescents and young adults on the ends of the long bones, ie. leg, arms, also hips and some areas of the spine. You will never reach your geneticly dictated stature.
2) Damage to your brain. The HPTA, or hypothalmus, pituitary, thyroid axis which controls the release of certain sex hormones, fsh,Lh and others,(folicle stimulating hormone and lutinizing hormone), will be IRREVERSIBLY damaged. Meaning you will most likely never have kids. Which may not seem like a big deal to you at 19,20 or even 23 but trust me when you get older and being the biggest, strongest son of a bitch around isn't as cool as it once was you'll regret it. Also if you damage this area of your brain other problems may follow such as hypogonadisim, "no nuts" and an inabliity to produce enough testosterone to maintain muscle mass let alone gain muscle, sterility, decreased thyroid function, heart disease, obesity, and others.
In addition to these problems, and I do not mean to insult you, kids and young adults do not have the patience or discipline to do things properly. If you want to juice you can't just start putting gear into your body without researching the effects, sides, risks and proper doses, post therapy, etc. All of the problems listed above can happen to adolescents/young adults even when doing things intellegently simply because your body is still growing and developing. 25 is usually when you have reached physical maturity, emotional maturity is another thing all together.....
Common sense guys...do not juice until your body is done growing on it's own. Just lift hard for a few years, lean how your body reacts to different types of exercise, nutrition, rest, etc...then when your done growing, you know your body and what its limitations and needs are then and only then should you juice, if you choose to, intellegently.
Respectfully submitted....
B.