Age-related inflammation is driven by a real biological process, not just general wear and tear, and it responds to specific lifestyle changes. As you age, damaged cells accumulate in your tissues and release a steady stream of inflammatory signals that raise baseline levels of inflammation throughout your body. This low-grade, chronic inflammation (sometimes called “inflammaging”) is a major risk factor for heart disease, type 2 diabetes, neurodegeneration, and cancer. The good news: diet, exercise, sleep, and a few other targeted strategies can meaningfully lower these inflammatory markers.
What Causes Inflammation to Rise With Age
The core driver is cellular senescence. When cells are damaged by oxidative stress, radiation, or simply enough rounds of division, they stop functioning normally but don’t die. Instead, they enter a zombie-like state and begin pumping out inflammatory molecules and tissue-degrading enzymes. This output is called the senescence-associated secretory phenotype, or SASP. A young immune system clears these senescent cells efficiently. An aging immune system does not.
That creates a vicious cycle. Senescent cells accumulate, triggering immune activation. The chronic immune response further impairs the body’s ability to clear those same cells, which means even more inflammatory signaling. Immune cells themselves, especially a type called macrophages, become key perpetuators of this loop. The result is a body-wide inflammatory baseline that creeps upward year after year, quietly increasing disease risk long before symptoms appear.
How Inflammatory Markers Change With Age
C-reactive protein (CRP) is the most commonly measured marker of systemic inflammation. In healthy younger adults, the typical cutoff is below 5 mg/L. But CRP rises predictably with age: the median concentration for people aged 45 to 64 is about 1.2 mg/L, while for those over 90 it climbs to 3.8 mg/L. Interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-alpha) follow similar upward trends. These aren’t just abstract lab numbers. Higher levels of each are independently linked to greater risk of cardiovascular events, cognitive decline, and earlier mortality.
Eat an Anti-Inflammatory Diet
A Mediterranean-style diet, rich in vegetables, fruits, whole grains, legumes, nuts, olive oil, and fish, is the most studied dietary pattern for reducing age-related inflammation. A 2025 meta-analysis of randomized controlled trials found that this eating pattern significantly lowers high-sensitivity CRP, IL-6, and IL-17 compared to control diets. The effect isn’t subtle: these are the same markers that track with aging-related disease risk.
Fiber deserves special attention. In a 24-week trial, sedentary adults who consumed 15 to 20 grams per day of a fiber blend (resistant starch, inulin, and oat beta-glucan) combined with moderate exercise saw their hs-CRP drop by 42%, IL-6 by 35%, and TNF-alpha by nearly 29%. Their levels of IL-10, an anti-inflammatory signal, rose by 32%. These changes were linked to measurable increases in gut microbiome diversity, which matters because a less diverse gut microbiome is both a feature and a driver of inflammaging. If you’re increasing fiber intake significantly, start around 10 grams per day for the first two weeks and build up gradually to avoid digestive discomfort.
Prioritize Aerobic Exercise
Both aerobic and resistance training reduce inflammatory markers, but the evidence tips in favor of aerobic exercise for the strongest anti-inflammatory effect. In direct comparisons, people doing aerobic training end up with lower TNF-alpha and IL-6 levels than those doing resistance work. One study found TNF-alpha levels roughly 40% lower in the aerobic group compared to the resistance group after the intervention period, with a similar pattern for IL-6.
That doesn’t mean you should skip strength training. Resistance exercise still lowers inflammation, preserves muscle mass (which itself reduces inflammatory signaling), and improves metabolic health. The practical takeaway is to make moderate aerobic exercise, such as brisk walking, cycling, or swimming, the foundation of your routine, and add resistance training on top. Aim for at least 150 minutes per week of moderate-intensity aerobic activity, consistent with guidelines that have shown anti-inflammatory benefits across multiple trials.
Sleep in the 7-Hour Sweet Spot
Sleep duration has a U-shaped relationship with inflammation. In a large study of older adults (the Health, Aging and Body Composition Study), IL-6 and TNF-alpha levels were significantly higher in people sleeping fewer than 6 hours or more than 8 hours per night, compared to those sleeping 7 hours. Both short and long sleep were also associated with higher mortality, and inflammatory markers partially explained that link.
Seven hours appears to be the reference point for the lowest inflammatory burden in older adults. This doesn’t mean obsessing over exact minutes, but it does mean that chronic sleep restriction (common in older adults dealing with insomnia or pain) and excessive time in bed both work against you. Consistent sleep and wake times, limited evening screen exposure, and a cool, dark bedroom are the basics that support this target.
Manage Stress at the Cellular Level
Mindfulness-based stress reduction (MBSR), the structured 8-week meditation and body-awareness program, has been tested specifically in lonely older adults aged 65 to 85. The results are nuanced. MBSR significantly reduced proinflammatory gene activity in immune cells, dialing down the molecular machinery that produces inflammatory proteins. However, it did not lower circulating levels of IL-6 or CRP in plasma during the study period.
This distinction matters. Stress reduction through mindfulness appears to reprogram how your immune cells behave at the genetic level, which would predict reduced disease risk over time, even if blood markers don’t shift immediately. Think of it as turning down the thermostat rather than opening a window: the temperature change takes longer to register but the underlying driver is addressed. Chronic psychological stress is a well-established accelerator of cellular senescence, so any sustained stress management practice, whether meditation, yoga, or regular social connection, is working against a known upstream cause of inflammaging.
Consider Omega-3 Supplementation
Omega-3 fatty acids from fish oil, specifically EPA and DHA, have consistent evidence for lowering inflammatory markers in older populations. A systematic review and meta-analysis found that doses of 1 to 3 grams per day of combined EPA and DHA produced the most reliable reductions in CRP, TNF-alpha, and IL-6. Below 1 gram, effects were inconsistent. Above 3 grams, there were diminishing returns without clear additional benefit.
If you eat fatty fish (salmon, mackerel, sardines) two to three times per week, you may already be in this range. If not, a supplement providing 1 to 2 grams of combined EPA and DHA daily is a reasonable target. Look for products that list the EPA and DHA content separately, since total “fish oil” on the label includes other fats that don’t have the same anti-inflammatory activity.
Senolytics: Clearing Damaged Cells Directly
Because senescent cells are the upstream source of inflammaging, researchers are testing compounds that selectively kill them. The most studied combination is quercetin (a plant flavonoid found in onions and apples) paired with the drug dasatinib. Adding fisetin, another plant compound found in strawberries, is also under investigation.
In a Phase I pilot study, participants took 500 mg of quercetin and 50 mg of dasatinib for three consecutive days per month over six months. A follow-up trial added 500 mg of fisetin on the same schedule. These are small, early-stage studies focused on epigenetic aging clocks rather than inflammatory markers directly, and some participants dropped out due to nausea or other concerns. Fisetin has been highlighted as potentially the safest and most potent natural senolytic tested so far, but human data remains limited.
This is not a recommendation to self-prescribe. Dasatinib is a prescription cancer drug with real side effects. But the science of clearing senescent cells is progressing, and quercetin and fisetin as dietary supplements are generally well tolerated. Whether they work as true senolytics at supplement doses in humans is still an open question.
Putting It Together
Age-related inflammation isn’t a single problem with a single fix. It’s a self-reinforcing cycle driven by damaged cells, an overworked immune system, and lifestyle factors that either accelerate or slow the process. The most impactful strategies based on current evidence, ranked roughly by strength of data: adopt a Mediterranean-style diet rich in fiber (aiming for at least 15 to 20 grams of prebiotic fiber daily), prioritize moderate aerobic exercise most days, sleep close to 7 hours per night, supplement with 1 to 3 grams of EPA and DHA if your fish intake is low, and maintain a regular stress management practice. Each of these targets a different node in the inflammatory cycle, and their effects are likely additive. The 24-week fiber trial that combined dietary fiber with moderate exercise, for example, produced some of the largest reductions in inflammatory markers seen in any lifestyle intervention study.