Fitness Trends Over the Last 50 Years

From Arnold's bodybuilding glory days to VHS workouts in your living room , from CrossFit tire flips to boutique studios charging $45 a class—fitness has gone through some wild phases. But here's the real question: which trends actually worked, and which ones were just shiny distractions? (Yeah, we said it) In this week's More Than Meatheads, Andrew and Luis break down 5 decades of fitness—what…