Browse the evidence

Higher Body Mass Index (BMI) is positively correlated with an increased risk of developing hypertension, with risk increasing significantly at BMI >30 kg/m2, although physical activity can mitigate this risk.

If you have a high BMI, your risk for high blood pressure is elevated, but it is not inevitable. Engaging in regular physical activity can significantly reduce this risk, even if your weight does not change drastically. Focus on movement as a protective factor alongside weight management.

Childhood BMI is a reliable predictor of chronic diseases and mortality in adulthood, with higher childhood BMI correlating with increased risks of cardiovascular death, type II diabetes, and endometrial cancer.

Maintaining a healthy BMI during childhood is crucial for long-term health. High childhood BMI is a strong predictor of adult diabetes, cardiovascular issues, and certain cancers. Prioritize healthy sleep habits and nutrition early, as these patterns tend to persist into adulthood.

Sleep deprivation and reduced sleep duration weaken the immune response, increasing susceptibility to viral, bacterial, and parasitic infections through mechanisms such as impaired lymphocyte proliferation and altered cytokine levels.

Prioritize adequate sleep duration and quality as a primary defense against infection. Sleep deprivation directly impairs immune cell function (lymphocytes, NK cells) and cytokine signaling, making you more susceptible to colds and other infections. Treat sleep with the same importance as nutrition and training.

Shorter objectively measured sleep duration is associated with higher BMI in cross-sectional analysis, but sleep duration does not predict longitudinal weight gain over 5 years.

Prioritizing sleep is healthy, but this study suggests that for many adults, simply extending sleep duration may not lead to weight loss. If you are struggling with weight, check for sleep-disordered breathing (like snoring) and address socioeconomic stressors, as these may be stronger drivers of the sleep-BMI link than sleep duration alone.

Brown adipose tissue (BAT) functions as an energy buffer by dissipating excess caloric intake as heat through thermogenesis, thereby protecting against obesity and metabolic disorders.

Your body has a natural 'energy buffer' called brown fat that burns calories as heat. While you can't buy it, you can potentially activate it through mild cold exposure (like cooler showers or lower room temperatures), which may help offset excess calorie intake and support metabolic health.

Living in an urban residence is associated with a significantly higher risk and prevalence of type 2 diabetes mellitus (T2DM) compared to living in a rural residence.

If you live in an urban area, be aware that your environment may be promoting behaviors that increase your risk of type 2 diabetes, such as less physical activity and more processed food consumption. You may need to be more intentional about your diet and exercise habits to counteract these environmental factors.

Higher neighborhood walkability is associated with a lower risk and prevalence of type 2 diabetes mellitus (T2DM).

Living in a neighborhood with higher walkability (e.g., sidewalks, mixed-use zoning, proximity to amenities) is associated with a lower risk of type 2 diabetes. This is likely because it makes physical activity easier to incorporate into daily life.

Reducing physical activity levels and increasing sedentary time are major determinants of the current obesity epidemic, as evidenced by the inverse correlation between leisure-time physical activity and BMI, and the decline in energy expenditure due to labor-saving devices.

Incorporate more movement into your daily routine. The decline in physical activity due to modern conveniences is a major contributor to obesity. Aim to reduce sedentary time and increase leisure-time physical activity to help prevent weight gain.

LCHF diets do not provide superior long-term weight loss or metabolic benefits compared to high-carbohydrate diets, and adherence is significantly lower over time.

If you are trying to lose weight or manage diabetes long-term, a strict LCHF diet is unlikely to give you better results than a balanced, higher-carbohydrate diet and is much harder to stick to. Focus on a diet rich in vegetables, whole grains, and moderate fat, which is easier to maintain and equally effective for weight loss over time.

Aging is driven by interconnected molecular mechanisms including DNA damage, telomere attrition, mitochondrial dysfunction, and NAD+ loss, which can be mitigated by interventions such as calorie restriction, improved sleep, and enhanced physical activity.

Focus on foundational lifestyle factors known to support cellular health: maintain a caloric balance (avoiding excess), prioritize sleep quality, and engage in regular physical activity. These behaviors target the molecular drivers of aging (DNA damage, mitochondrial function, NAD+ levels) identified in current research.

Breast cancer patients undergoing chemotherapy exhibit significantly impaired muscle strength (5-25% lower in lower extremities, 12-16% in upper extremities) and increased muscular fatigue compared to healthy controls, regardless of whether treatment is ongoing or completed.

Breast cancer patients, especially those undergoing chemotherapy, experience significant and measurable muscle strength loss (up to 25% in legs, 16% in shoulders) and faster fatigue compared to healthy peers. This loss is driven by both the direct toxic effects of chemotherapy on muscle fibers and reduced physical activity. To counteract this, patients should engage in resistance training as early as possible, as it is safe during treatment and helps preserve muscle function, which is critical for survival and quality of life.

Butyric acid (a short-chain fatty acid produced by bacterial fermentation of fiber) has anti-inflammatory effects and strengthens the intestinal barrier by increasing mucin production and tight junction proteins.

Consume adequate dietary fiber to allow gut bacteria to produce butyric acid. This strengthens your gut lining and reduces inflammation.

GLP-1 receptor agonists induce weight loss primarily through central nervous system signaling to the arcuate nucleus (specifically POMC/CART neurons) rather than peripheral mechanisms like gastric emptying.

GLP-1 medications work by signaling to your brain's appetite centers (specifically the arcuate nucleus) to reduce food intake, rather than just slowing digestion. This central mechanism is why they are effective for weight loss even when side effects like nausea subside.

In metropolitan areas, increased distance to supermarkets is associated with higher obesity prevalence and lower fruit and vegetable consumption, whereas in nonmetropolitan areas, distance to supermarkets shows no significant association with either outcome.

If you live in a city, living closer to a supermarket is linked to better diet and lower obesity risk. However, if you live in a rural area, simply moving closer to a supermarket does not guarantee better health; other factors like income, education, and local food culture are likely more important drivers of your diet.

Carriers of the common MC4R variant rs17782313 (allele-C) exhibit significantly higher intakes of total energy and dietary fat, leading to greater long-term BMI increase and increased risk of type 2 diabetes in women.

If you carry the MC4R risk variant, you may biologically predispose yourself to eat more calories and prefer fatty foods. This isn't a failure of willpower but a biological trait. To manage weight, focus on strategies that mitigate this drive, such as prioritizing whole foods over energy-dense fats and monitoring portion sizes, especially if you have a family history of diabetes.

Genetic variants (e.g., FTO, MC4R) influence the response to obesity treatments, including lifestyle interventions, pharmacotherapy, and bariatric surgery, with some variants predicting poorer weight loss outcomes after certain procedures.

If you are considering bariatric surgery, discuss your genetic risk (e.g., FTO status) with your surgeon. Some genetic variants may predict poorer outcomes with gastric banding, suggesting that gastric bypass might be a more effective option for you.

Type 2 diabetes acts as an independent risk factor that accelerates the progression of nonalcoholic fatty liver disease (NAFLD) to advanced fibrosis and cirrhosis, and conversely, NAFLD predicts the development of type 2 diabetes.

If you have Type 2 Diabetes or Prediabetes, your liver health is inextricably linked to your blood sugar control. Managing your glucose and insulin levels is not just about preventing complications elsewhere; it is a primary strategy to stop fatty liver from progressing to serious scarring (fibrosis). Conversely, treating liver inflammation may help stabilize your diabetes risk. Regular screening for liver fibrosis is critical for this population.

Grape seed extract (600 mg/day) significantly improves markers of inflammation (hsCRP), glycaemia (fructosamine), and oxidative stress (GSH) in high-risk Type 2 diabetic subjects over a 4-week period.

If you have Type 2 diabetes and are at high risk for heart problems, adding 600mg of grape seed extract daily to your routine may help lower inflammation and improve blood sugar control markers over a month. This is not a substitute for your prescribed medication but could be a supportive addition to discuss with your doctor.

Dietary cholesterol is a distinct and critical risk factor for the progression of NAFLD to NASH, driving inflammation and oxidative stress independently of total lipid accumulation.

For those with fatty liver, paying attention to dietary cholesterol intake may be important for preventing progression to more severe liver disease (NASH). This includes limiting high-cholesterol foods, as the liver's ability to handle cholesterol is compromised in NAFLD, leading to inflammation.

In insulin-resistant subjects, a carbohydrate-rich diet redistributes body fat to central depots and decreases postprandial peripheral adiponectin gene expression, whereas a monounsaturated fat (MUFA)-rich diet prevents this central fat redistribution and maintains higher adiponectin expression.

If you are insulin resistant, eating a high-carbohydrate diet may cause your body to store fat in your belly (central depot) and reduce protective adiponectin levels, even if you don't gain overall weight. Switching to a diet rich in monounsaturated fats (like olive oil) can help prevent this central fat accumulation and maintain better insulin sensitivity compared to high-carb or high-saturated-fat diets, provided total calories remain stable.

A traditional Japanese dietary pattern characterized by high fish and soy intake, low red meat and saturated fat, and moderate-to-low salt consumption is associated with the world's longest life expectancy, primarily by reducing mortality from ischemic heart disease and specific cancers.

Adopt a dietary pattern that prioritizes fish (especially for omega-3s) and plant-based proteins like soy over red meat. Maintain a low intake of saturated fats while ensuring adequate calcium and animal protein sources if tolerated. Incorporate unsweetened beverages like green tea. This macro-nutrient profile, rather than extreme caloric restriction, supports the longevity outcomes observed in populations with this diet.

High intake of soybeans and isoflavones is associated with lower risks of breast and prostate cancer, as well as reduced cardiovascular mortality.

Include soy products (tofu, edamame, miso) regularly in your diet. This provides isoflavones which are linked to lower risks of breast and prostate cancer, as well as cardiovascular benefits.

High consumption of green tea (unsweetened) is inversely associated with all-cause and cardiovascular mortality.

Drink unsweetened green tea regularly. This habit is associated with lower all-cause and cardiovascular mortality.

Individuals with cardiovascular disease (CVD) or type 2 diabetes exhibit a clustered 'unhealthy behavioral phenotype' characterized by low physical activity, high television viewing, and poor sleep duration, which is significantly more prevalent in those with both conditions compared to disease-free individuals.

If you have heart disease or type 2 diabetes, your risk is significantly higher if you combine low exercise, high TV watching, and poor sleep. These behaviors tend to happen together. Focus on breaking this cluster: try to reduce evening TV time to improve sleep, and gradually increase movement. Dietary changes are important, but addressing these three non-diet behaviors is equally critical for managing your condition.