Chronic Inflammation and Inflammaging
Chronic low-grade inflammation — elevated circulating inflammatory cytokines in the absence of acute infection — is now recognized as a central driver of aging and virtually every major age-related disease including cardiovascular disease, cancer, Alzheimer's, and type 2 diabetes. This "inflammaging" state arises from multiple converging sources: senescent cells secreting SASP, gut barrier dysfunction, visceral adiposity, poor sleep, sedentary behavior, and processed food consumption. Anti-inflammatory interventions — omega-3 supplementation, exercise, dietary fiber, and polyphenols — demonstrably reduce CRP and inflammatory cytokines and are associated with reduced disease incidence.
Viewpoints
Rhonda Patrick: omega-3 fatty acids reduce 19 pro-inflammatory cytokines through specialized pro-resolving mediators
Rhonda Patrick
“Omega-3 fatty acids EPA and DHA are enzymatically converted to specialized pro-resolving mediators (SPMs) — resolvins, protectins, and maresins — that actively terminate inflammatory cascades rather than simply suppressing them. This distinction is critical: conventional anti-inflammatory drugs block inflammation but impair resolution; SPMs actively clear immune cells and cellular debris from inflamed tissue. High-dose EPA+DHA supplementation (4g/day) reduced 19 pro-inflammatory proteins in the VITAL trial, with older women showing the greatest reductions in TNF-alpha and IL-6. The omega-3 to omega-6 ratio in the diet is a key determinant of the balance between pro- and anti-inflammatory mediators.”
Bill Harris: elevated CRP and low omega-3 index as independent cardiovascular inflammatory risk factors
Bill Harris
“C-reactive protein and the omega-3 index represent two complementary biomarkers of cardiovascular inflammatory risk that operate through different but interacting mechanisms. Elevated CRP reflects active hepatic inflammatory response to circulating cytokines, while a low omega-3 index reflects chronically deficient anti-inflammatory substrate. Both are associated with increased risk of cardiovascular events independently of LDL cholesterol. Harris argues that testing both biomarkers provides more complete risk stratification than traditional lipid panels alone, and that addressing both — through omega-3 supplementation and lifestyle modification — targets the inflammatory component of cardiovascular disease that statins alone do not fully address.”
Key Moments
Rhonda Patrick: visceral fat is a major driver of systemic inflammation through inflammatory adipokine secretion
Rhonda Patrick
“Visceral adipose tissue — fat accumulated around internal organs — is metabolically active and secretes pro-inflammatory adipokines including leptin, resistin, and TNF-alpha, as well as recruits inflammatory macrophages that generate local and systemic inflammation. Unlike subcutaneous fat, visceral fat is strongly associated with insulin resistance, liver inflammation, and elevated CRP. Even modest visceral fat reduction through exercise, dietary modification, or caloric restriction produces meaningful decreases in inflammatory markers and improvements in metabolic health — effects that are partially independent of changes in total body weight.”
Stuart Phillips: resistance exercise reduces systemic inflammation through muscle-derived anti-inflammatory myokines
Stuart Phillips
“Skeletal muscle is an endocrine organ that secretes anti-inflammatory myokines — including IL-6 (acting as an anti-inflammatory in this context), irisin, and IL-10 — during and after resistance exercise. The acute IL-6 spike from contracting muscle paradoxically inhibits TNF-alpha and IL-1 signaling and stimulates anti-inflammatory IL-1 receptor antagonist, producing a net anti-inflammatory effect. Regular resistance training also reduces adiposity and increases muscle mass — both of which lower baseline inflammatory tone. This positions resistance training as a particularly valuable anti-inflammatory intervention for older adults with sarcopenia-driven metabolic inflammation.”
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