Welcome to Markus Reinhardt’s Heavy Duty Nation—the only community built on the original High Intensity Training legacy. I was trained directly under Mike Mentzer, and here I pass on the real system that transforms physiques and mindsets with maximum efficiency. Inside, you’ll get exclusive courses, ebooks, live weekly Q&A sessions, and direct access to me. If you’re tired of cookie-cutter programs and wasted effort, this is where serious lifters come to learn Mentzer’s Heavy Duty the right way.