← All stories
Health, Longevity & Biohacking

Chronic Elevated Cortisol Causes Muscle Wasting Similar to Cushing's Disease

Peter Attia Drive · Building strength and muscle mass: optimize training & nutrition for longevity (AMA #71 rebroadcast) · July 6, 2026
Chronic Elevated Cortisol Causes Muscle Wasting Similar to Cushing's Disease
Peter Attia Drive
Peter Attia Drive
Building strength and muscle mass: optimize training & nutrition for longevity (AMA #71 rebroadcast)
"More cortisol, less muscle. Chronically elevated levels of cortisol are actually catabolic to muscle. We see the most extreme example of this when we look at a patient with Cushing's disease or Cushing's syndrome where they actually experience muscle wasting due to the hypercortisolemia. But for many of us listening who don't have Cushing's disease, but who still probably walk around with too much cortisol, it's definitely hurting us."
Attia explains that chronic stress-induced cortisol elevation produces muscle-wasting effects similar to the medical condition Cushing's disease, even at subclinical levels. Unlike testosterone supplementation, there's no simple pharmaceutical fix for high cortisol—individuals must address lifestyle stress factors. This positions stress management as equally critical to muscle maintenance as training and nutrition.
From this episode
Peter Attia Drive
Peter Attia Drive

Building strength and muscle mass: optimize training & nutrition for longevity (AMA #71 rebroadcast)

August 3, 2026 · 1h 57m · 6 Egleze moments
Read episode summary and key points →

More moments from this episode

Health, Longevity & BiohackingMuscle Strength Five Times More Predictive of Mortality Than SmokingHealth, Longevity & BiohackingType 2A Muscle Fibers Begin Atrophying in Your 30s and 40sScienceMendelian Randomization Confirms Muscle Strength Causally Reduces Mortality RiskHealth, Longevity & BiohackingPeter Attia Hasn't Done One Rep Max in 15 Years, Never Will Again
More stories More from Peter Attia Drive