Sounds like the author initially had a diverse strength routine, but then learnt the opposite: > It can be hard to believe a true strength coach the first time

Sounds like the author initially had a diverse strength routine, but then learnt the opposite: > It can be hard to believe a true strength coach the first time he tells you that by pressing and dead-lifting on even days, squatting and doing chin-ups on odd days, avoiding all other exercises, and adding a little to the bar each time, you'll be stronger than you've ever been in only a month's time. Thanks to the fitness industry, we're so conditioned to equate sophistication with complexity – and to think we've got to "work each body part" – that our gut just says, No way; that can't work. But it works like magic, and the entire body hardens up in unison. Oh, and then he learnt the opposite of the opposite too? > "Somewhere inside every man's body," Brown told me, lying in a La-Z-Boy, "there's a weak link, a weak muscle waiting to fail. My job is to find that muscle and make it strong." Every big joint in your body, Brown explained, has what are called prime movers, meaning big muscles that govern the main action, like the biceps and triceps. But every joint also has a bunch of little stabilizer muscles. Sedentary lives, camped out in office chairs, allow those stabilizers to atrophy, raising two problems: First, if you have powerful prime movers from doing muscle-isolation machines at the gym but weak stabilizers because you rarely get to play a sport, you can't access all your strength when you, say, bang off a mogul on a ski hill.