Chronic low-grade inflammation
Distinct from acute inflammation (response to injury, helpful and self-limiting), chronic low-grade inflammation is sustained, system-wide, and pathological. Often invisible symptomatically; measured in lab markers (hs-CRP, IL-6).
Major drivers
- Visceral fat (most powerful single driver)
- Poor sleep / sleep apnea
- Chronic stress
- Gut dysbiosis
- Smoking
- Excess alcohol
- Sedentary behavior
- Ultra-processed food / high sugar
- Low omega-3 / high omega-6
- Periodontal disease
- Subclinical infections
Downstream effects
Chronic inflammation contributes to:
- Cardiovascular disease (vascular inflammation)
- Insulin resistance and diabetes
- Cancer (chronic inflammation promotes tumor growth)
- Neurodegeneration (Alzheimer's, Parkinson's)
- Depression and anxiety
- Autoimmune disease
- Frailty and sarcopenia
- Joint disease
Hormonal effects
Inflammation suppresses sex hormones:
- IL-6 and TNF-α suppress Leydig cell testosterone production
- Inflammatory cytokines disrupt HPG axis at hypothalamic level
- Cortisol responds to inflammation, contributing to dysregulation
- Thyroid conversion shifts toward inactive reverse T3
Metabolic effects
- Direct insulin signaling interference (cytokine-induced)
- Hepatic insulin resistance
- Adipose dysfunction
- Mitochondrial dysfunction
- Disrupted glucose disposal
Addressing inflammation
- Reduce visceral fat (most powerful)
- Sleep optimization
- Stress management
- Exercise
- Mediterranean-pattern diet
- Adequate omega-3 (target index >8%)
- Limit alcohol
- Don't smoke
- Address sleep apnea
- GLP-1 therapy where indicated (substantial inflammation reduction)
- Statins where indicated
- Address gut health
Monitoring
- hs-CRP (workhorse)
- Fibrinogen
- WBC and neutrophil/lymphocyte ratio
- IL-6 (less commonly available)
- Omega-3 index
The clinical insight: Many "separate" age-related problems trace to chronic inflammation as common driver. Addressing inflammation system-wide often produces broader benefits than treating individual symptoms.
Bottom line
Chronic low-grade inflammation is a central driver of age-related disease, hormonal dysfunction, and metabolic problems. Targeting inflammation through lifestyle, metabolic intervention, and where appropriate medication produces benefits that single-system treatment cannot match. Inflammation is the master disruptor.