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systemic inflammation has become the norm, and chronic inflammation is responsible for 3 in 5 deaths worldwide but inflammation isn’t the problem, it’s the symptom. the problem is something else 1/ <a target="_blank" href="https://twitter.com/1655936149733654530/status/1924487474619019389" color="blue">x.com/16559361497336…</a>
your immune system evolved to respond fast and shut down faster. short bursts of inflammation helped you survive infections, injuries, and foreign organisms. but modern life keeps the system always inflamed, and your body pays the price. 2 /
when inflammation resolves, it’s healing. when it doesn’t, it’s killing. redness, heat, and swelling mean the system is working. but when that state becomes chronic (low-grade, system-wide) it starts killing you from the inside. 3/
this is inflammaging (an actual biological process). aging and inflammation feed each other. every year of unresolved cellular damage fuels more immune activation, which in turn accelerates the decay. it’s a self-reinforcing loop. 4 /
the main switch that controls this process is NF-κB. it’s activated by oxidative stress, bacterial toxins, mitochondrial dysfunction, and other danger signals once triggered, it turns on hundreds of inflammatory genes and initiates long-range tissue damage. 5/
the NLRP3 inflammasome acts like a cellular smoke detector. it senses mitochondrial debris, uric acid, lipopolysaccharides (LPS), and oxidized cholesterol. once triggered, it releases IL-1β (a cytokine that amplifies immune activity) and feeds systemic inflammation. 6 /
IL-1β raises temperature and degrades muscle, promotes insulin resistance, impairs memory, and accelerates telomere shortening. your cells are firing it chronically. 7/
this system worked well in ancestral life: detect threat, neutralize it, shut down, repair, repeat but today’s inputs (seed oils, high-fructose corn syrup, chronic endotoxemia, circadian disruption, psychological stress) create chronic inflammation 8/
the result is persistent immune activation without resolution. even in people who look healthy, biomarkers like CRP, IL-6, TNF-α, and IL-1β tend to rise with age. you’re not recovering, you’re just dying. 9/
IL-6 especially is predictive. in elders, high baseline IL-6 strongly correlates with physical disability, cognitive decline, immune dysfunction, and early death it’s so reliable they call it “the cytokine of aging.” 10/
NF-κB is elevated in virtually all age-related diseases: Alzheimer’s, cancer, type 2 diabetes, osteoporosis, sarcopenia this is the molecular thread tying them together. 11/
NF-κB drives ageing. it blocks tissue repair, suppresses stem cell renewal, weakens autophagy, and locks your biology in a state of chronic emergency. you can’t heal in constant defense mode. 12/
in mice, turning down NF-κB in aged skin restored hair growth, increased dermal thickness, and reversed structural decline. the damage isn’t permanent. the system can heal, but it needs to be cleaned out 13/
chronic inflammation damages every tissue: in muscle, it suppresses IGF-1 and stops anabolic signaling. in fat, it drives leptin resistance and fuels hyperinsulinemia. in the brain, it degrades synapses and worsens neuroplasticity. 14/
arteries calcify, bone density falls. mitochondrial turnover slows. senescent cells accumulate. this is what happens when inflammation is high and resolution is low. your whole system breaks 15/
centenarians often have CRP, IL-6, and TNF-α lower than people 20 years younger. their mitochondria function better, their gut leaks less, and their resolution pathways remain active. 16/
inflammation was never the villain. it’s what calls for repair. but if it’s triggered it daily (processed food, poor sleep, no movement) you don’t get healing. you wither away 17/
so what do you do? you remove the input: seed oils, HFCS, constant grazing, sitting for hours, emotional instability. you restore the resolution: intermittent fasting, exercise, cold exposure, sleep well, and polyphenols. 18/
you don’t want to suppress the immune system. you want to make it efficient. inflammation is fine, chronic is not. 19/
for more: <a target="_blank" href="https://open.substack.com/pub/iterintellectus/p/your-body-is-attacking-itself" color="blue">open.substack.com/pub/iterintell…</a>