Browse the evidence

Device-guided breathing modulation is more effective for lowering blood pressure than acupuncture, receiving a Class IIA recommendation compared to acupuncture's Class III.

If you are looking for non-drug ways to lower blood pressure, device-guided breathing is a reasonable option (Class IIA) with better evidence than acupuncture (Class III). You should prioritize device-guided breathing if you are considering non-invasive procedures.

Academic stress and exam periods negatively impact eating behaviors, leading to increased consumption of energy-dense foods and irregular eating patterns.

During high-stress periods like exams, your willpower is depleted. Do not rely on it. Prepare healthy, easy-to-eat snacks in advance. Accept that you might eat more, but try to steer that increased intake toward nutrient-dense options rather than processed foods.

Social environment, including peer pressure and lack of parental control, significantly influences university students' food choices, often promoting unhealthy behaviors.

Be aware that your social circle dictates your diet. If your friends eat unhealthy, you likely will too. Seek out social activities that don't revolve around food, or find a 'health buddy' within your social group to support better choices.

A comprehensive community-based lifestyle intervention targeting diet, physical activity, and smoking cessation can prevent or delay the onset of non-communicable disease (NCD) risk factors in a population undergoing nutrition transition.

To prevent chronic diseases like diabetes and heart disease, focus on sustainable lifestyle changes rather than just medication. This involves improving your diet (more fruits/vegetables, less fat), increasing physical activity, and quitting smoking. Community-based programs that offer education, support, and environmental changes (like healthier school snacks) are effective ways to achieve these goals.

During COVID-19 confinement, Spanish adults significantly increased their adherence to the Mediterranean Diet (MedDiet) by reducing intake of fried foods, snacks, fast foods, red meat, pastries, and sweet beverages, while increasing consumption of olive oil, vegetables, fruits, and legumes.

If you are looking to improve your diet during a period of restricted movement or stress, focus on two actions: cut back on fried foods, snacks, fast food, red meat, pastries, and sugary drinks, while simultaneously increasing your intake of olive oil, vegetables, fruits, and legumes. This specific shift in food choices is strongly linked to better overall dietary adherence and may help prevent chronic diseases.

Self-reported anxiety and depression during enforced lockdown significantly predict increased weight gain in adults with obesity, independent of exercise levels.

If you are feeling anxious or depressed, expect your weight to potentially increase. This is a common reaction to stress, not a personal failure. Focus on identifying 'comfort foods' that are healthier and manage portion sizes, as mental burden is a stronger driver of weight gain than exercise levels during lockdown.

Most adults attempting weight loss do not use the recommended combination of reducing calorie intake and engaging in at least 150 minutes of leisure-time physical activity per week.

If you are trying to lose weight, relying on just one strategy (like cutting fat or just walking) is likely to fail. You must combine a caloric deficit with at least 150 minutes of moderate physical activity per week. Most people fail because they do not do both.

Women are significantly more likely than men to attempt weight loss, even at normal BMI levels, suggesting societal pressure toward thinness is a primary driver.

Women are more likely to try to lose weight than men, even if they are already at a healthy weight. This is likely due to societal pressure. Focus on health metrics rather than just weight if you are a normal-weight woman.

Schools can improve student nutrition and maintain financial viability by restricting competitive foods and enhancing the quality of reimbursable school meals.

Schools should replace unhealthy competitive foods (like soda and chips) with healthier alternatives rather than removing them entirely. This strategy can maintain or increase revenue by encouraging more students to purchase reimbursable school meals, thereby supporting both student health and school budgets.

A 7-week Tibetan Yoga intervention significantly improves sleep quality, reduces sleep latency, increases sleep duration, and decreases reliance on sleep medications in patients with lymphoma.

If you have lymphoma and are struggling with sleep, a gentle 7-week Tibetan Yoga program may help. The program involves weekly classes focusing on breathing, visualization, and simple movements, along with daily home practice using provided materials. While it did not significantly reduce anxiety or fatigue in this study, it significantly improved sleep quality, helped you fall asleep faster, increased sleep duration, and reduced the need for sleep medications.

Web-based interventions alone do not significantly differ from control or minimal intervention groups in achieving weight loss, unless they include enhanced behavioral features.

Do not expect a basic website with articles and meal plans to produce significant weight loss on its own. These programs are no more effective than doing nothing. You need a program that actively engages you with feedback and behavioral strategies.

Physical exercise induces transient oxidative stress (hormesis) which triggers adaptive responses, including increased antioxidant enzyme activity (SOD, CAT, GPx) and mitochondrial biogenesis, ultimately reducing baseline oxidative stress in Type 2 Diabetes.

Engage in regular physical exercise, including moderate-intensity, resistance, or high-intensity interval training. While exercise temporarily increases oxidative stress, this triggers your body to produce more antioxidant enzymes and improve mitochondrial health, reducing overall oxidative stress.

Exercise is generally safe with minimal adverse events, which are typically mild, transient, and comparable to control groups, though reporting of adverse events is often poor in studies.

Exercise is safe for most people. You might experience some muscle soreness, but serious side effects are rare. Do not let fear of injury stop you from exercising, as the benefits to your health and longevity are substantial.

Physical exercise performed at or above World Health Organization recommendations modifies gut microbiota composition by increasing the abundance of health-promoting bacterial species (Faecalibacterium prausnitzii, Roseburia hominis, Akkermansia muciniphila) in premenopausal women.

If you are a premenopausal woman with a healthy BMI, aiming for at least 3 hours of moderate-intensity exercise per week is associated with a gut microbiota profile richer in beneficial bacteria like Faecalibacterium, Roseburia, and Akkermansia compared to a sedentary lifestyle. This suggests that meeting WHO exercise guidelines may support gut health.

Breaking sedentary behavior (increasing sedentary breaks) is independently associated with gut microbiota richness and specific bacterial genera, distinct from the effects of exercise volume alone.

For premenopausal women with a healthy BMI, simply breaking up long periods of sitting with short movements is associated with higher gut microbiota richness. This suggests that reducing continuous sedentary time may be beneficial for gut health, independent of total exercise volume.

Supplementation with alginate acts as an adjunct to energy restriction to enhance satiety and improve weight loss in obese individuals.

If you are trying to lose weight, consider adding alginate (a soluble fiber from seaweed) to your routine. It helps you feel fuller, which can make sticking to a calorie-restricted diet easier. It is not a replacement for eating less, but a tool to help you do it.

Dietary non-adherence, specifically the consumption of high-calorie liquids, 'grazing' (repeated small meals), and food indiscretion (sweets/fats), is a primary behavioral cause of weight regain and insufficient weight loss after bariatric surgery.

Avoid 'grazing' (frequent small snacks) and high-calorie liquids (sugary drinks, milkshakes). These bypass the stomach's physical restriction and satiety signals. Focus on structured, nutrient-dense meals and monitor liquid calorie intake closely.

Leptin regulates body weight in humans predominantly by affecting eating behavior (satiety) rather than by increasing energy expenditure (calorigenesis).

Unlike in mice, where leptin increases energy expenditure, in humans, high leptin levels do not correlate with higher energy expenditure. This suggests that leptin's primary role in weight regulation is through satiety and eating behavior, not by burning more calories at rest.

Increasing gut microbial diversity through interventions like probiotics, prebiotics, or dietary changes can reduce cravings and promote weight loss.

Focus on increasing the diversity of your gut bacteria by eating a varied diet rich in fibers and fermented foods. This may help reduce cravings and support weight management, but it is not a substitute for overall healthy lifestyle habits.

Habitual social media engagement or exposure to image-related content is associated with higher body dissatisfaction and disordered food choices (including dieting, restricting, and overeating) in healthy young adults.

If you are a young adult, be aware that your social media habits may negatively impact your body image and eating behaviors. Limit exposure to image-heavy content that triggers comparison, and prioritize real-world health goals over online validation.

Older adults (≥65 years) and Mexican Americans with type 2 diabetes are more likely to adhere to dietary guidelines (higher fruit/vegetable intake, lower saturated fat) compared to other demographic groups.

If you are older or Mexican American, you may already be making healthier dietary choices. Continue to prioritize fruits, vegetables, and lower saturated fat intake.

Physical activity (specifically moderate-to-vigorous physical activity) significantly declines by an average of 5.2 minutes per day during the transition from adolescence (13-19 years) to early adulthood (16-30 years).

If you are moving from your teens into your 20s or 30s, expect your daily moderate-to-vigorous activity to drop by about 5 minutes a day on average. This is a normal response to life changes like starting a job or moving out. To protect your health, you must intentionally structure your time to maintain activity levels, as the natural trend is downward.

Residing in areas with higher fast food restaurant access is associated with higher body mass index (BMI) in adults, though this association is inconsistent and not observed in children.

If you live in an area saturated with fast food, recognize that this environment makes unhealthy eating more convenient and likely. You can mitigate this by planning meals ahead, keeping healthy snacks accessible, or seeking out full-service restaurants with healthier options, understanding that your physical surroundings exert a subtle but real pressure on your dietary habits.

Elite athletes use dietary supplements significantly more frequently than non-elite athletes, with no consistent change in overall prevalence over time.

If you are not competing at a professional or national level, you are statistically less likely to use supplements than elite athletes, but this does not mean you should. The data shows high usage across all levels, suggesting supplements are common but not strictly required for non-elite success.