Browse the evidence

Eccentric isokinetic training produces significantly greater strength gains in eccentric muscle actions than concentric training produces in concentric actions, with hypertrophy and neural activation contributing to strength increases in both modes.

To maximize strength, incorporate eccentric-focused training. Perform 3 sets of 10 repetitions, 3 times a week, for 10 weeks. Focus on maximal effort during the lowering phase. Expect significant strength gains, particularly in movements involving eccentric actions, driven by both muscle growth and neural adaptations.

Adherence to plant-based dietary patterns, specifically the Mediterranean and DASH diets, is associated with significantly lower levels of oxidative stress and pro-inflammatory biomarkers compared to habitual or Western diets.

Focus on adopting a Mediterranean or DASH dietary pattern rather than relying on isolated antioxidant supplements. These patterns, rich in plant-based foods, are consistently linked to lower inflammation and oxidative stress in both observational and intervention studies. Prioritize whole foods over single-nutrient interventions for chronic disease prevention.

Systematic nutritional risk screening upon hospital admission, followed by detailed assessment and tailored nutritional support, reduces mortality, length of stay, and complications in malnourished or at-risk patients.

For hospital staff: Implement a standardized, rapid nutritional screening tool (like NRS-2002) for every patient within 24-48 hours of admission. If a patient scores as at risk, do not just provide standard meals; refer them for a detailed assessment to create a tailored nutritional care plan. This proactive step is proven to reduce mortality and hospital stay length.

Mediterranean diet patterns, rich in fruits, vegetables, and monounsaturated fats, reduce the prevalence of metabolic syndrome and lower inflammatory markers.

Adopting a Mediterranean-style diet, focusing on fruits, vegetables, and healthy fats, can help reduce the risk of metabolic syndrome and lower inflammation.

High-intensity progressive resistance training (PRT) significantly reduces depressive symptoms in elderly adults (aged 60+) with major or minor depression, with the magnitude of improvement correlating directly with training intensity.

If you are an older adult struggling with depression, high-intensity resistance training (lifting weights at about 80% of your maximum capacity) three times a week for 10 weeks can significantly reduce your depressive symptoms. The key is intensity: the harder you train (within safe limits), the greater the improvement in your mood. This approach is safe, effective, and can also improve your strength and quality of life.

A daily protein intake of 0.8–1.2 g/kg body weight during energy restriction sustains satiety, preserves fat-free mass, and prevents weight regain, with 1.2 g/kg being superior for improving body composition and resting energy expenditure.

To lose fat and keep it off, aim for 0.8 to 1.2 grams of protein per kilogram of your body weight every day while eating fewer calories. This amount keeps you full, protects your muscle, and keeps your metabolism high. If you want better body composition (more muscle, less fat), aim for the higher end (1.2 g/kg). You do not need to cut carbs to see these benefits; the protein itself is the key driver.

Maintaining moderate or high levels of physical activity after age 50 significantly increases total life expectancy and cardiovascular disease-free life expectancy compared to a sedentary lifestyle.

If you are 50 or older, increasing your daily physical activity to moderate or high levels can add years to your life and keep you free of heart disease. You do not need to be an elite athlete; simply engaging in moderate activity (like brisk walking) provides significant benefits, while high activity provides even greater gains. Start by incorporating more movement into your daily routine.

Aerobic exercise significantly reduces arterial stiffness, as measured by pulse wave velocity (PWV) and augmentation index (AIx), with greater benefits observed at higher exercise intensities and in individuals with pre-existing arterial stiffness.

To improve arterial stiffness, prioritize aerobic exercise. Aim for moderate-to-high intensity (around 74% of your max heart rate) for about 40 minutes, 3 times a week. If you already have stiff arteries, higher intensity aerobic exercise will provide even greater benefits. Resistance training alone or combined with aerobic exercise did not show significant improvements in arterial stiffness in this review.

Vigorous aerobic exercise performed habitually reduces the incidence of coronary heart disease and total mortality, but only if the exercise exceeds a specific intensity threshold (e.g., >6 METs or >65% max oxygen uptake); non-vigorous high-volume physical activity provides no such protection.

To protect your heart, you must exercise vigorously enough to significantly raise your heart rate and breathing (e.g., fast walking >4mph, vigorous sports, or cycling) on a regular, habitual basis. Simply being 'active' or burning many calories through low-intensity tasks (like gardening or light walking) will not reduce your risk of coronary heart disease. The protection is specific to the intensity and the continuity of the effort.

Long-term creatine supplementation (20g/day loading followed by 5g/day maintenance) combined with resistance training significantly enhances muscle strength gains, intermittent exercise capacity, and fat-free mass compared to resistance training alone in sedentary females.

If you are new to resistance training, adding 5 grams of creatine monohydrate daily to your routine will help you build more muscle and strength than training alone. You do not need to do a high-dose loading phase; just take 5 grams every day. This benefit is seen in both men and women, though this specific study focused on sedentary young women.

Regular exercise improves sleep quality and duration, with the effect being most robust in middle-aged and elderly adults, particularly those with chronic diseases.

If you are middle-aged or older, or manage a chronic condition like high blood pressure or diabetes, regular exercise is one of the most effective ways to improve your sleep. You don't need to worry about the specific type or intensity; moderate activity is sufficient. If you struggle with falling asleep, try morning exercise. If you wake up often, evening exercise might help. Consistency is key.

Walking is inversely associated with cardiovascular disease (CVD) risk and all-cause mortality, with brisk walking pace being a stronger independent predictor of risk reduction than walking volume.

Incorporate walking into your daily routine, aiming for a brisk pace (where you can talk but not sing) for at least 2.5 hours per week. This level of activity is strongly associated with reduced risk of heart disease and death, and may be more effective than focusing solely on the duration of slower walks.

There is a linear dose-response relationship between walking (both pace and volume) and reduced risk of CVD and all-cause mortality, with significant benefits observed even at minimal levels (approx. 3 hours/week).

Start with a manageable goal, such as walking for 3 hours per week at a moderate pace. You will see health benefits immediately, and increasing your pace or duration will further reduce your risk of heart disease and death.

A very low-calorie diet (VLCD) of 624-700 kcal/day for 8 weeks, followed by structured weight maintenance, can induce sustained remission of type 2 diabetes (fasting glucose <7 mmol/L) in approximately 40% of participants, primarily by reducing intrahepatic and intrapancreatic fat and restoring first-phase insulin secretion.

If you have Type 2 Diabetes, significant weight loss through a very low-calorie diet (around 600-700 calories/day for 8 weeks) can potentially put your diabetes into remission, especially if you have had it for a shorter time. This involves stopping diabetes medications under medical supervision, using a structured diet plan, and then maintaining that weight loss. It works by clearing fat from your liver and pancreas, allowing your body to regulate blood sugar normally again.

Lifestyle modification interventions (dietary changes with or without exercise) significantly increase the relative proportion of patients with metabolic syndrome who achieve resolution compared to conventional education or no treatment.

If you have metabolic syndrome, structured lifestyle changes involving diet and/or exercise are significantly more effective at resolving the condition than general health advice. Aim for a structured plan, such as the Mediterranean or DASH diet, combined with moderate exercise (e.g., 150 minutes/week), maintained for at least 6 months.

Consumption of sugar-sweetened beverages (SSBs) increases the risk of obesity, type 2 diabetes, and metabolic syndrome by providing unabsorbed liquid calories and promoting de novo lipogenesis and visceral fat accumulation.

To reduce your risk of obesity and metabolic syndrome, limit your intake of sugar-sweetened beverages. Replace them with water, unsweetened coffee, or tea. If you consume fruit juice, limit it to about 4 ounces per day, as it acts like other added sugars. Reducing SSB intake is associated with less weight gain and lower risk of fatty liver.

Dehydration of 2% body weight impairs endurance performance and increases cardiovascular strain in hot environments (>30°C), whereas it may be tolerated without significant performance loss in cold or temperate environments.

In hot weather, drink to match your sweat rate to avoid performance loss and heat injury. In cool or temperate weather, you can safely allow yourself to lose up to 2% of your body weight without expecting a significant drop in performance, which may be more practical than trying to drink large volumes while exercising.

Low-load resistance training (25-35 reps to failure) produces muscle hypertrophy equivalent to high-load resistance training (8-12 reps) in well-trained men.

If you want to build muscle but have joint pain or prefer lighter weights, you can still grow by doing 25-35 reps per set until you can't do another rep. Just make sure you are actually pushing to failure, as that is the key driver for muscle growth when the weight is light.

High-load resistance training (8-12 reps) is superior to low-load resistance training (25-35 reps) for maximizing maximal strength gains in well-trained men.

If your main goal is to lift the heaviest weight possible (1RM), you must train with heavier loads (8-12 reps). Lighter weights will build muscle size, but they will not make you as strong as heavy weights do.

Meeting the 2018 physical activity guidelines (≥150 min moderate or ≥75 min vigorous aerobic activity plus ≥2 days muscle strengthening) is associated with a significantly reduced risk of all-cause and cause-specific mortality in US adults.

To maximize longevity, aim for at least 150 minutes of moderate aerobic activity (like brisk walking) or 75 minutes of vigorous activity (like running) per week, combined with muscle-strengthening exercises on two or more days. Doing both provides the strongest protection against death from all causes, including heart disease and cancer. If you can only do one, aerobic activity offers greater benefits, but adding resistance training significantly boosts your survival odds.

Combining moderate-intensity physical activity with caloric restriction enhances fasting fat oxidation, which is the strongest predictor of improved insulin sensitivity in obese individuals, yielding greater benefits than either intervention alone.

To maximize insulin sensitivity, do not rely on diet or exercise alone. Combine a moderate caloric deficit (500-1000 kcal/day) with regular moderate-intensity exercise (4-6 days/week, 40 minutes, 60-75% max heart rate). This combination significantly outperforms either strategy in isolation by enhancing your body's ability to oxidize fat, which directly drives improvements in how your body handles insulin.

Combined treatment with dapagliflozin (10 mg/day) and n-3 carboxylic acids (4 g/day) significantly reduces liver fat content (PDFF) in individuals with type 2 diabetes and NAFLD, achieving a greater reduction than either monotherapy.

For individuals with Type 2 Diabetes and fatty liver, combining a standard dose of dapagliflozin (10 mg daily) with a high dose of omega-3 carboxylic acids (4 g daily) for 12 weeks significantly reduces liver fat content more effectively than using either treatment alone. This dual approach leverages both energy balance and fatty acid metabolism pathways to improve liver health.

Engaging in leisure-time physical activity significantly reduces the risk of ischemic stroke in elderly, multiethnic populations, with a clear dose-response relationship where both higher intensity (heavy vs. light-moderate) and greater duration (>=5 hours/week) provide progressively greater protection.

For elderly adults, engaging in any leisure-time physical activity significantly lowers the risk of ischemic stroke. You do not need to perform intense workouts; light-to-moderate activities like walking, gardening, or dancing are effective. Increasing the duration of activity (aiming for 5 or more hours per week) and intensity (incorporating heavier activities like jogging or tennis if safe) provides even greater protection. This benefit applies to men and women of all ethnic backgrounds studied.

Rapid increases in training load (load intensification) and periods of accumulated high training load significantly increase the risk of injury and illness in athletes.

Monitor your training load closely. Avoid sudden spikes in intensity or volume. If you must increase load, do so gradually. Pay attention to fatigue markers; if you feel unusually fatigued, reduce the load to prevent injury.