The negatives to using anabolic/androgenic steroids at 18 years of age by Testanabol.
Once upon a time, there was an 18 year old boy who had a friend called, Flash Gordan.
He decided that even though he was at the peak of his natural hormonal existence, puking out Growth Hormone and Testosterone by the bucket load, he would turn to the dark side and take steroids.
His friend, FlashGordan, who was a very wise and forward thinking kind of guy got some facts and advice about his friends plan.
The advice was this;
Dont Fuck with your hormonal system when your 18 you dumb sonofabitch.
Taking Steroids at 18 could fuck you up for life, destroy your natural testosterone production, give you a pair of titties and leave you looking like Marilyn Manson.
It was also stated in a calmer and more placid manner that said friend of flashgordan should make the most of this amazing period of his life, eating a good diet that provides an abundance of quality calories and following an exercise routine built around the cornerstones of squats and deadlifts.
All fucking about aside mate, your mate has a good friend in you so hats off to you.
Tell him the above, maybe leave out the dumb sonofabitch thing;) tell him to focus on diet and training, 6 - 8 quality meals a day, supplements that are proven to work well, creatine, fish oils and a good multi vit/mineral complex.
Hope you can talk him out of it.