Inflammation is aging: What drives it and what the evidence says about lowering it

Inflammaging: The biological background hum of aging

Inflammation is the immune system’s acute protective response to injury, infection, and cellular damage. It is a short-term process designed to resolve. Inflammaging is something categorically different: a persistent, low-grade activation of the innate immune system that does not resolve because its drivers are chronic rather than acute. The senescent cells secreting SASP, the visceral fat secreting adipokines, the dysbiotic gut leaking LPS, the periodontal bacteria releasing endotoxins into the bloodstream. These are continuous inflammatory inputs that the immune system cannot switch off because they do not resolve.

The downstream consequences span every organ system. In the vasculature, NF-kB activation drives endothelial dysfunction and atherosclerosis. In the brain, microglial activation produces the neuroinflammation associated with Alzheimer’s disease. In muscle, TNF-alpha promotes catabolism and drives sarcopenia. In metabolic tissue, IL-6 and IL-1beta promote insulin resistance. Inflammaging does not kill through one mechanism. It accelerates deterioration across every system simultaneously.

The five drivers and their interventions

Visceral adiposity. Visceral fat is metabolically active and secretes IL-6, TNF-alpha, leptin, and resistin continuously. Every kilogram of visceral fat reduction produces measurable hs-CRP improvement. Zone 2 aerobic exercise and caloric moderation specifically reduce visceral fat more effectively than subcutaneous fat and are the highest-leverage visceral fat interventions.

Gut dysbiosis. A dysbiotic gut microbiome produces increased intestinal permeability that allows bacterial lipopolysaccharide (LPS) into systemic circulation. LPS activates TLR4 receptors throughout the body and drives NF-kB inflammatory signaling. Mediterranean diet, fermented foods, and prebiotic fiber improve microbiome composition and reduce intestinal permeability within six to eight weeks.

Senescent cell SASP. Covered in the senescent cell article in this library. Fisetin and quercetin-based senolytic protocols, monthly fasting, and consistent exercise that promotes immune clearance of senescent cells address this driver.

Periodontal disease. An underappreciated driver of systemic inflammation. Periodontal bacteria in the subgingival biofilm of adults with gum disease release endotoxins into the bloodstream through inflamed periodontal tissue. Periodontal disease is associated with significantly elevated hs-CRP, cardiovascular disease, and Alzheimer’s disease risk through this mechanism. Professional dental cleaning twice yearly and consistent twice-daily flossing are among the lowest-effort longevity interventions with disproportionate systemic inflammation benefit.

Social isolation. As covered in the loneliness and social connection articles in this library, social isolation drives cortisol elevation and NF-kB activation through perceived threat pathways. hs-CRP is significantly higher in socially isolated adults compared to those with adequate connection, and the biological mechanism connects directly to inflammaging pathways.

The Livium recipe

Tool. hs-CRP annually as the primary inflammaging biomarker. Target below 1.0 mg/L; above 3.0 mg/L indicates high cardiovascular and systemic disease risk. Add IL-6 and fibrinogen for a more complete picture of the inflammatory tone. These three markers together provide a comprehensive inflammaging assessment at minimal cost.

Behavior. Mediterranean dietary pattern as the primary anti-inflammatory dietary intervention. Specifically: olive oil as the primary fat, two to three servings of fatty fish weekly, abundant vegetables and legumes, moderate whole grains, nuts as snacks, and very limited ultra-processed food. The PREDIMED trial showed the Mediterranean diet with extra olive oil reducing major cardiovascular events by 30 percent and hs-CRP by 20 to 25 percent over five years.

Threshold. After 12 weeks of Mediterranean diet with anti-inflammatory supplement support: hs-CRP should decline by 20 to 30 percent from baseline. If it remains elevated despite dietary change, investigate the five drivers specifically. Elevated hs-CRP that does not respond to diet usually reflects a specific persistent driver (periodontal disease, gut dysbiosis, visceral fat, OSA, or persistent social isolation) that needs targeted intervention.

Life Extension Certified European Olive Leaf Extract provides oleuropein at doses shown to reduce NF-kB activity and hs-CRP in multiple trials, providing Mediterranean-pattern anti-inflammatory benefits in supplement form. NOW Foods Astaxanthin 4 mg is the most potent carotenoid antioxidant measured in vitro, with published human trials showing hs-CRP reduction and immune function improvement. Pure Encapsulations EPA/DHA Essentials at 2,000 to 3,000 mg EPA/DHA daily reduces IL-6, TNF-alpha, and hs-CRP through competitive inhibition of arachidonic acid inflammatory pathways; the EPA fraction is the most anti-inflammatory. Thorne Curcumin Phytosome inhibits NF-kB and reduces COX-2 prostaglandin production; the phytosome formulation achieves meaningful plasma concentrations where standard curcumin does not.

Source: Livium editorial synthesis based on NIA Inflammation and Aging and Franceschi et al., Annual Review of Immunology (2018).

Plan of action

• Get hs-CRP tested this year if it has not been checked recently. A result above 1.0 mg/L without acute illness is inflammaging and warrants systematic investigation of the five drivers.
• Schedule a dental cleaning this month if it has been more than six months. The hs-CRP impact of treating periodontal disease is consistently underestimated because the relationship between oral and systemic inflammation is underappreciated outside specialist circles.
• Shift toward a Mediterranean dietary pattern this week. Start with olive oil as the primary cooking fat and two servings of fatty fish weekly. These two changes alone produce measurable hs-CRP improvement within six to eight weeks.
• Retest hs-CRP at 12 weeks after dietary and lifestyle changes. If improvement is less than expected, identify which of the five drivers is persisting and address it specifically rather than increasing supplement doses.