even so, check out these from Mark Rippetoe (one of the foremost strength trainers in the country)
>The Starting Strength program is designed to take advantage of the body's immense growth capability during the first few months of training, when Rip says a lifter can gain faster naturally than many seasoned veterans can on steroids.
"These are the prime growth years. You'll never have another anabolic window like that ever again," says Rip. "And if you waste it, you can never go back."
>What kind of growth are we talking about?
"An 18-year-old kid showing up at my gym for the first time; if he's 5'10'' and 140 pounds on day one, I've seen kids that size put on 60 pounds of mass in six to eight months more times than I count," says Rip. "In fact, if he doesn't get results like that, I know he's not eating enough."