Browse the evidence

Diet and physical activity based interventions during pregnancy significantly reduce the odds of caesarean section.

Engage in moderate physical activity and follow a balanced diet during pregnancy. This combination significantly reduces the odds of requiring a caesarean section. These benefits apply to women of all body weights.

Sleep deprivation increases the risk of cardiometabolic diseases (hypertension, type 2 diabetes, obesity) by promoting systemic inflammation, insulin resistance, and sympathetic nervous system overactivity.

Aim for 7-8 hours of sleep to protect your heart and metabolic health. Chronic sleep restriction (<6 hours) significantly increases your risk of obesity, type 2 diabetes, and hypertension by promoting inflammation and insulin resistance. Prioritizing sleep is a foundational strategy for preventing cardiometabolic disease.

Men and patients with higher baseline OSA severity experience greater reductions in Apnea-Hypopnea Index (AHI) from weight loss interventions.

While weight loss helps everyone with sleep apnea, men and those with more severe sleep apnea tend to see the biggest improvements in their breathing metrics. If you are a man or have severe sleep apnea, prioritizing weight loss may yield the most dramatic relief from your symptoms.

Caffeine ingestion (median 6.0 mg/kg) significantly reduces Rating of Perceived Exertion (RPE) during constant-load exercise compared to placebo, an effect that partially explains the subsequent improvement in exercise performance.

Take approximately 6mg of caffeine per kg of body weight about 60 minutes before exercise. Ensure you have abstained from caffeine for at least 24 hours beforehand. This will likely lower how hard the exercise feels during the activity, allowing you to sustain higher intensities or durations, particularly if you are well-trained. Note that this reduction in perceived effort does not necessarily persist at the very end of an all-out exhaustion test.

Lifestyle interventions combining dietary changes and physical activity significantly reduce the risk of developing type 2 diabetes in high-risk individuals (those with impaired glucose tolerance or metabolic syndrome).

If you have impaired glucose tolerance or metabolic syndrome, combining modest weight loss (5-7% of body weight) with increased physical activity (aiming for ~150 minutes per week) and a diet lower in saturated fat and higher in fiber can reduce your risk of developing type 2 diabetes by nearly half. These benefits can last for many years, even after the active intervention ends.

Adherence to four low-risk lifestyle factors (never smoking, BMI 18.5-25, ≥30 min/day moderate-to-vigorous physical activity, and high diet quality) is associated with a 3.41-fold higher relative risk of all-cause mortality compared to adhering to none of these factors.

To maximize your lifespan, focus on four key areas: never smoke, maintain a healthy weight (BMI 18.5-25), engage in at least 30 minutes of moderate-to-vigorous exercise daily, and eat a high-quality diet (high in vegetables, fruit, nuts, whole grains, and healthy fats). You do not need to be perfect; even modest improvements in these areas significantly reduce your risk of death. If you don't smoke, you still need to prioritize diet and activity, as these factors independently lower mortality risk.

Malnutrition is a preventable and reversible condition that worsens clinical outcomes, increases morbidity and mortality, and increases healthcare costs if left undetected.

Recognize malnutrition as a distinct, treatable disease, not just a side effect of aging or illness. Early identification and intervention can reverse the condition and significantly improve patient survival and recovery rates.

Resistance training (RT) is necessary for increasing lean body mass and strength, whereas aerobic training (AT) does not significantly increase lean body mass.

If your goal is to build muscle and strength, you must include resistance training in your exercise routine. Aerobic exercise alone will not significantly increase your lean body mass. Aim for 3 days per week of resistance training, performing 3 sets of 8-12 repetitions for each major muscle group.

Improving overall diet quality over a 12-year period significantly reduces the risk of all-cause mortality, with greater improvements yielding larger reductions in risk.

Focus on gradually improving your diet quality over time rather than seeking perfection. Even modest, sustained improvements in the quality of your diet (measured by indices like AHEI, MedDiet, or DASH) can significantly lower your risk of dying from any cause. Consistency over the long term matters more than short-term intensity.

Maintaining a consistently high-quality diet over 12 years is associated with a lower risk of all-cause mortality compared to maintaining a consistently low-quality diet.

Aim to maintain a high-quality diet consistently over the long term. While improving your diet is beneficial, keeping your diet quality high over many years provides a significant protective effect against mortality. Focus on sustainable habits that you can maintain.

Adherence to four major healthy dietary patterns (HEI-2015, AMED, HPDI, AHEI) is associated with a statistically significant reduction in the risk of incident cardiovascular disease (CVD), including coronary heart disease and stroke.

To lower your risk of heart disease and stroke, focus on long-term adherence to established healthy dietary patterns rather than chasing single 'superfoods' or nutrients. The four major patterns studied (HEI-2015, AMED, HPDI, AHEI) all share core components: high intake of vegetables, fruits, whole grains, legumes, and nuts, and lower intake of red/processed meats, sugar-sweetened beverages, and refined grains. You can choose the pattern that best fits your cultural background and personal preferences, as all were associated with a 14-21% lower risk of CVD when comparing the highest adherence to the lowest.

High-Intensity Resistance and Impact Training (HiRIT) improves lumbar spine and femoral neck bone mineral density and physical function in postmenopausal women with osteopenia or osteoporosis without causing adverse events, contrary to traditional safety concerns.

If you are a postmenopausal woman with low bone density, supervised high-intensity resistance and impact training (like squats, deadlifts, and controlled jumps) performed twice a week for 30 minutes can significantly improve your bone density and physical function. This should be done under professional supervision to ensure safety and correct technique.

Consuming one serving per day of sugar-sweetened beverages (SSBs) is associated with a 0.12 kg additional weight gain over one year and an 18% higher risk of type 2 diabetes (T2D), independent of total energy intake adjustments in some analyses.

Limit sugar-sweetened beverages to occasional consumption. Replacing one daily serving of soda with water or unsweetened tea can prevent approximately 0.12 kg of weight gain per year and significantly lowers your risk of developing type 2 diabetes. Be cautious with fruit juice, as it offers similar metabolic risks to soda due to high sugar content; prefer whole fruits instead.

High intake of sugar-sweetened beverages is associated with a 13-22% increased risk of cardiovascular events (stroke and myocardial infarction) and a 21% higher risk of all-cause mortality, driven largely by cardiovascular mortality.

High consumption of sugary drinks significantly increases your risk of heart attack, stroke, and early death. This risk exists even if you are not overweight. Reducing SSB intake is a critical step for long-term cardiovascular health, especially for women who may face higher stroke risks.

Post-exercise massage is the most effective recovery technique for reducing delayed onset muscle soreness (DOMS) and perceived fatigue, outperforming active recovery, compression garments, immersion, and cryotherapy.

If you are dealing with muscle soreness or fatigue after a hard workout, schedule a 20-30 minute massage within two hours of finishing. This is currently the most evidence-backed way to reduce pain and tiredness, working better than cold baths, compression gear, or active recovery for these specific feelings.

Supervised aerobic exercise training (AET) significantly improves patient-rated physical functioning, overall quality of life, fatigue, and cardiovascular fitness in lymphoma patients, with improvements mediated by increased peak oxygen consumption (VO2peak).

If you have lymphoma, supervised aerobic exercise (like cycling) 3 times a week for 12 weeks can significantly improve your physical function, energy levels, and mood. Start at a moderate intensity and gradually increase duration and intensity. This is safe even while undergoing chemotherapy and does not negatively impact your treatment outcomes.

Consumption of plant sterols/stanols reduces LDL cholesterol by approximately 0.31 mmol/L, with efficacy significantly modulated by baseline LDL levels, food carrier type, and dosing frequency.

To lower LDL cholesterol effectively, consume 1.5 to 2.5 grams of plant sterols or stanols daily. Do not take them as a single morning dose, as this may be ineffective. Instead, split the dose across meals or take it with lunch. Ensure they are delivered in a food matrix with fat, such as fat spreads, milk, or yoghurt, rather than low-fat beverages or baked goods, as these carriers significantly enhance efficacy.

Obesity increases the risk of cardiovascular disease, type 2 diabetes, cancer, and early mortality, while sarcopenia (low muscle mass) increases the risk of injury, disability, and mortality, making the assessment of both fat and lean mass critical for risk stratification.

Maintain a healthy balance of fat and muscle. High fat mass and low muscle mass are both independently linked to higher risks of chronic disease and early death. Regular body composition checks help identify these risks early.

Marine omega-3 fatty acids (EPA and DHA) significantly reduce several cardiovascular risk factors, including blood triglycerides, blood pressure, heart rate, and inflammatory markers (CRP, IL-6), regardless of clinical outcome in primary prevention trials.

Taking omega-3 supplements will likely lower your triglycerides and slightly lower your blood pressure. However, this physiological improvement does not always translate to fewer heart attacks in healthy people, so do not rely on it as a sole preventive measure.

Adhering to the 2006 AHA Diet and Lifestyle Recommendations substantially reduces the risk of developing cardiovascular disease (CVD).

To significantly lower your risk of heart disease, focus on a balanced diet rich in vegetables, fruits, whole grains, and fish (at least twice a week). Limit saturated fats, trans fats, cholesterol, and sodium. Maintain a healthy weight by balancing calorie intake with regular physical activity (at least 30 minutes most days). Avoid tobacco and limit alcohol to 1 drink per day for women and 2 for men. These lifestyle changes are the most effective way to prevent cardiovascular disease.

Heat acclimatisation (repeated exercise-heat exposures over 1–2 weeks) is the most important intervention to reduce physiological strain and optimise aerobic performance in hot ambient conditions.

If you are competing in the heat, you must spend 1-2 weeks training in the heat before the event. Do this daily. If you can't travel, use a sauna suit or hot room to simulate the heat. This is more important than any other strategy for performance.

Exercise-based cardiac rehabilitation significantly reduces the risk of fatal and/or non-fatal myocardial infarction in patients with coronary heart disease.

If you have coronary heart disease, engaging in supervised exercise-based cardiac rehabilitation is a highly effective way to lower your risk of having another heart attack. It is safe and recommended by major health organizations.

Higher leisure time physical activity is associated with a reduced risk of major adverse cardiovascular events (MACE) and all-cause mortality, whereas higher occupational physical activity is associated with increased risks of both outcomes.

Prioritize physical activity in your leisure time for heart health and longevity. Do not rely on your job's physical demands to protect your cardiovascular system, as high occupational activity may actually increase your risk of heart events and death. Aim for dynamic, conditioning-level exercise during free time, ensuring you have adequate recovery.

Adherence to the Mediterranean Diet (MedDiet) reduces the incidence of chronic non-communicable diseases (CVD, metabolic syndrome, cancer, cognitive decline) and all-cause mortality.

Adopt a Mediterranean-style eating pattern as your default long-term lifestyle. Prioritize plant-based foods (vegetables, fruits, legumes, nuts, whole grains), use extra virgin olive oil as your primary fat, eat fish and poultry moderately, limit red meat and sweets, and enjoy moderate wine with meals if you drink. Combine this with regular physical activity and social meals. This pattern is associated with the strongest evidence for preventing chronic diseases and extending healthy lifespan.