Category

Zone 2

Zone 2 is the third of four pillars in my framework for exercise: aerobic exercise. Zone 2 is defined as the highest metabolic output/work that you can sustain while keeping your lactate level below two millimole per liter.

Below is a compilation of clips, podcasts, and articles all about zone 2 training, why it is important, and how often you should be incorporating it into your exercise regimen.

#103 – Looking back on the first 99 episodes: Strong Convictions, Loosely Held

“I reserve metformin prescriptions for patients who obviously are in need of it from the standpoint of glucose and insulin regulation, but I don’t view it really as a pro longevity agent yet.” — Peter Attia

#92 – AMA #12: Strategies for longevity (which don’t require a doctor)

“If you are interested in longevity, if you are interested in playing with your great grandkids, you want to prioritize muscle mass. Never in the history of civilization has a 90 year old said, ‘I wish I had less muscle.’” —Peter Attia

#85 – Iñigo San Millán, Ph.D.: Zone 2 Training and Metabolic Health

“What I have been seeing for 25 years, working with elite athletes, is that [zone 2] is the exercise intensity where I see the biggest improvement in fat burning and the biggest improvement in lactic clearance capacity. Therefore, that means that the mitochondria is where you see the biggest improvement.” —Iñigo  San Millán, Ph.D.

#73 – AMA #9: NAD & metformin, fat-burning zone, creatine, estrogenization of men, emergency kit for cold & flu, and more

“The sky is blue, and the trees are green; therefore, I should eat cyanide.” — Peter Attia on the type of brilliant logic people use to suggest you burn more calories while sleeping vs. exercising

#69 – Ronesh Sinha, M.D.: Insights into the manifestation of metabolic disease in a patient population predisposed to metabolic syndrome, and what it teaches us more broadly

“The way we raise our kids early on might actually set a pattern for how much of an accelerated life, or how much of a stressed out nervous system they might have later on. . . a lot of the behavioral patterns that we’re instilling in our kids are kind of setting the foundation for insulin resistance and inflammation early on.” —Ronesh Sinha

Does it help to know your coronary artery calcium score?

I read an interesting paper on fitness, cardiovascular disease (CVD), and coronary artery calcium (CAC) scores from the Cooper Center Longitudinal Study. This paper looked at “generally healthy middle-aged men” and associations between their level of aerobic fitness, CAC scores, and risk for CVD. So why was this interesting to me (and by extension, should you care)?

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