Browse the evidence

Senolytic drugs (e.g., Dasatinib + Quercetin) reduce senescent cell burden and improve healthspan parameters in aged, radiation-exposed, and progeroid mice, though clinical use is limited by side effects like neutropenia.

Senolytic drugs like Dasatinib and Quercetin show promise in animal models for improving healthspan and reducing senescent cells. However, human application is currently limited by side effects like blood cell count reduction. This is an emerging field, not yet a standard recommendation for healthy individuals.

SASP modulation (senomorphics) offers an alternative to senolytics by targeting the secretome rather than killing cells, with potential benefits for wound healing and fibrosis where cell clearance might be harmful.

Instead of killing senescent cells, some therapies aim to reduce their harmful secretions (SASP). Drugs like Metformin and Rapamycin may have these effects, but their benefits are not solely due to SASP modulation. This approach may be safer in contexts where some senescent cells are needed for healing.

Inducing senescence in cancer cells (prosenescence) followed by senolytic clearance ('one-two punch') or immune potentiation can improve cancer treatment outcomes by exploiting vulnerabilities of senescent tumor cells.

For cancer patients, combining standard treatments with senolytics is a promising strategy being studied in labs. It aims to kill cancer cells and then clear the remaining damaged ones. This is not yet a standard of care.

Genetic variations in the AQP4 water channel gene affect sleep architecture, tolerance to sleep deprivation, and the rate of cognitive decline in Alzheimer's disease, with specific polymorphisms linked to faster or slower progression.

If you have a family history of Alzheimer's, consider discussing genetic testing for AQP4 polymorphisms with your doctor. Understanding your genetic risk may help tailor sleep and cardiovascular strategies to protect your brain health.

Exercise does not reduce mortality or amputation rates in patients with intermittent claudication.

While exercise won't necessarily prevent amputation or death based on current data, it is still recommended because it significantly improves your quality of life and walking ability. Focus on the functional benefits rather than expecting it to cure the underlying arterial disease.

Low-grade systemic inflammation, driven by hepatic cytokine production, visceral adipose tissue, and gut microbiota metabolites (like TMAO), is a key pathophysiological mechanism linking NAFLD to cardiovascular disease and arrhythmias.

Managing NAFLD involves reducing systemic inflammation through weight loss, dietary changes (reducing saturated fats and processed meats which affect gut microbiota), and exercise. This reduces the inflammatory burden on your blood vessels and heart.

Blueberry consumption improves cognitive function and slows cognitive decline in older adults, particularly those with mild cognitive impairment.

If you are concerned about memory or cognitive decline, adding blueberries to your diet may help. Studies suggest that eating blueberries daily for several months can improve memory and executive function, especially in older adults.

Small molecule-based therapies and reprogramming strategies can ameliorate or reverse aging-related conditions by manipulating epigenetic mechanisms.

Epigenetic rejuvenation therapies are being developed. Consult a healthcare provider for emerging treatments.

Dietary fiber fermentation outcomes (SCFA profile and quantity) are determined by the host's gut microbiota enterotype (Prevotella- vs. Bacteroides-dominated), meaning identical fiber substrates produce different health-relevant metabolites depending on individual microbiome composition.

If you are trying to optimize gut health with fiber, recognize that your unique gut bacteria dictate the outcome. A fiber that boosts satiety-signaling propionate in one person might produce different effects in another. Personalized fiber choices based on microbiome testing may be necessary for specific health goals, as generic fiber advice ignores these biological differences.

Activation of the Nrf2 signaling pathway promotes mitochondrial biogenesis, thereby supporting active longevity and mitigating age-related mitochondrial dysfunction.

To support active longevity, engage in activities that mildly stress the body, such as moderate physical exercise. This stress activates the Nrf2 pathway, which in turn boosts mitochondrial biogenesis (the creation of new mitochondria) and improves cellular energy efficiency. This process helps counteract age-related decline in mitochondrial function.

Nrf2 and PGC-1α form a bidirectional regulatory loop where Nrf2 influences PGC-1α expression, and PGC-1α activates Nrf2, jointly regulating mitochondrial biogenesis.

Understanding that Nrf2 and PGC-1α work together helps explain why both stressors (like exercise) and nutrients (like those activating Nrf2) are important for mitochondrial health. They reinforce each other.

Targeting mitochondrial dysfunction through dietary supplements (e.g., NAD+ precursors, antioxidants) and pharmacological agents shows promise in preclinical models but lacks robust clinical translation due to issues with stability and efficacy.

While specific mitochondrial supplements and drugs are being researched, current clinical evidence is limited. The most accessible way to support mitochondrial health remains regular physical activity, which promotes mitochondrial biogenesis and function, alongside a balanced diet that provides necessary nutrients for mitochondrial function.

Mitochondrial transplantation, involving the transfer of healthy mitochondria to damaged cells, is a promising preclinical therapy for various diseases but faces challenges in clinical translation due to unstable vitality and transient effects.

Mitochondrial transplantation is an experimental therapy currently limited to research settings and specific clinical trials. It is not a standard treatment. Patients interested in this therapy should consult with their healthcare provider about available clinical trials.

Sleep deprivation increases the risk of cancer development and progression by suppressing anti-tumor immune responses, specifically reducing Natural Killer (NK) cell activity and CD8+ T-cell numbers.

Maintain 7-8 hours of sleep to support your body's natural anti-tumor defenses. Sleep deprivation reduces the activity of Natural Killer (NK) cells and CD8+ T cells, which are critical for identifying and destroying cancer cells. While sleep alone is not a cure, chronic restriction creates an immunosuppressive environment that may facilitate cancer development.

Aging is associated with distinct shifts in gut microbiome composition and function, specifically an increase in Akkermansia and short-chain fatty acid production in the oldest-old, alongside a reduction in Faecalibacterium and amino acid synthesis pathways.

As you age, your gut microbiome changes in specific ways that may support longevity. Key changes include an increase in Akkermansia (often linked to metabolic health) and butyrate production, and a decrease in Faecalibacterium. While you cannot directly 'take' these bacteria, maintaining a diet rich in fibers that support these specific taxa (like polyphenols for Akkermansia) may align with these healthy aging patterns. Focus on whole foods rather than just 'diversity' supplements.

Interventions targeting the gut microbiome in older adults, such as prebiotic (pectin) or probiotic supplementation, do not significantly alter alpha or beta diversity metrics compared to placebo.

If you are older, taking prebiotics (like pectin) or probiotics may not drastically change your gut's overall diversity or short-chain fatty acid levels compared to not taking them. While not harmful, do not expect these supplements to be a 'magic bullet' for microbiome health. Focus on long-term dietary habits.

Wearable activity trackers have small or non-significant effects on physiological markers (blood pressure, cholesterol, glycosylated haemoglobin) and psychosocial outcomes (quality of life, pain).

While using a wearable activity tracker will likely increase your physical activity and help with weight loss, do not expect it to significantly lower your blood pressure, cholesterol, or blood sugar on its own. Similarly, improvements in quality of life or pain reduction are not guaranteed. The primary benefit is increased movement.

Higher genetically predicted fat-free mass index is inversely associated with the risk of atrial fibrillation, ischaemic stroke, and abdominal aortic aneurysm.

Maintaining or increasing fat-free mass (muscle) may offer protective benefits against atrial fibrillation, ischaemic stroke, and abdominal aortic aneurysm. Incorporate resistance training to build muscle, while also managing fat mass to optimize cardiovascular health.

Berberine supplementation reduces atherosclerotic plaque area and inflammatory markers in animal models of cardiovascular disease.

Berberine shows promise in reducing atherosclerosis in animal studies by lowering inflammation and oxidative stress. While human trials are limited, it may be a supportive supplement for cardiovascular health, particularly for those with metabolic issues. Consult a doctor before use, especially if taking other medications.

Berberine may have bidirectional effects on tissue factor expression, potentially promoting thrombosis in some contexts.

Berberine's effect on blood clotting is complex. While it generally inhibits platelet aggregation, it may increase tissue factor expression in some cell types, potentially promoting thrombosis. This highlights the need for caution in individuals with clotting disorders or those taking anticoagulants.

The impact of exercise on sleep in children, adolescents, and young adults is mixed and less consistent than in older adults.

For younger people, exercise still generally helps sleep, but the results are less predictable. Don't be discouraged if you don't see immediate changes. Focus on consistent activity rather than intensity or timing, as the body's response is more variable in these age groups.

Long sleep duration (excessive) is independently associated with increased mortality risk in the elderly population, likely due to sleep fragmentation and underlying health conditions rather than sleep duration itself.

If you are an older adult sleeping significantly more than recommended, do not assume it is healthy. It may be a sign of underlying health issues or poor sleep quality (fragmentation). Consult a healthcare provider to investigate the cause.

Obesity exacerbates COVID-19 severity through metabolic and immune mechanisms, specifically by upregulating ACE2 receptors, promoting a 'cytokine storm' via adipokines (leptin, IL-6), and causing immune system attenuation.

Obesity isn't just about weight; it creates a state of chronic inflammation and immune dysregulation. This makes your body more likely to overreact to the virus (cytokine storm) and less able to fight it effectively. Managing metabolic health (blood sugar, blood pressure) is crucial for reducing this internal inflammatory burden.

Gut dysbiosis, characterized by a decrease in beneficial commensals (e.g., Akkermansia muciniphila) and short-chain fatty acids (SCFAs) and an increase in pro-inflammatory microbes, triggers systemic inflammation (inflammaging) and gut leakiness, which are primary drivers of aging-associated morbidities and premature death in the elderly.

Focus on maintaining a diverse and healthy gut microbiome through diet and lifestyle choices, as this appears to be a key factor in healthy aging and longevity. This includes consuming fiber-rich foods to support beneficial bacteria and SCFA production, and potentially avoiding unnecessary antibiotics. While individual results may vary, the evidence suggests that gut health is a critical lever for mitigating age-related decline.