john sifferman

15 Lessons I’ve Learned From 15+ Years of Fitness About What Really MATTERS (Do This Stuff to Succeed)

Today, I’m going to share 15 things that 15 years of fitness has taught me about what really matters when it comes to physical training, among other things. I think that this will be a nice change from the endless argumentation and bickering over mostly insignificant or otherwise inconsequential issues that is so rampant in […]

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