Featured on www.menshealth.com on October 30th, 2015

“Thirty minutes. That’s all I’m asking for. If you can give me that, you’re going to get the best upper-body workout of your life.

But here’s the deal: You can’t just go through the motions. Or start strong, and then taper off.

After all, intensity is the inverse of duration. The shorter the workout, the harder you need to push.”

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https://www.menshealth.com/fitness/a19548033/hardest-upper-body-circuit-ever/