Browse the evidence

Complex training (alternating heavy resistance exercises with sport-specific plyometric drills) and soccer-specific power actions are preferred over traditional resistance exercises due to superior ecological validity and transfer to performance.

Incorporate complex training methods where you alternate heavy resistance exercises (e.g., squats) with explosive, sport-specific movements (e.g., jumps, sprints) in the same session. This approach has better 'ecological value' for soccer players than doing traditional strength exercises alone.

Concurrent high-intensity strength and high-intensity endurance training (HIT) enhances overall performance capacity in soccer players, provided the training is periodized correctly.

Combine high-intensity strength and endurance training in your soccer program. Ensure both are high-intensity and periodized to manage fatigue, as this concurrent approach enhances overall performance capacity for highly trained players.

Dietary nitrate supplementation (e.g., beetroot juice) improves oxygen uptake kinetics and reduces the O2 cost of submaximal exercise, leading to performance improvements in time-to-exhaustion tasks (4-25%) and intermittent team-sport exercises (3-5%).

Consume 310-560mg of nitrate (typically via beetroot juice) 2-3 hours before your event. This improves efficiency and can boost performance by 3-5% in team sports or up to 25% in time-to-exhaustion tasks. It may take 3+ days of consistent intake for cumulative benefits.

Beta-alanine supplementation (3.2-6.4 g/day for 2-12 weeks) increases muscle carnosine levels and improves performance in high-intensity exercise lasting 30 seconds to 10 minutes.

Take 3.2-6.4g of beta-alanine daily, split into smaller doses (e.g., 0.8-1.6g every 3-4 hours) to avoid tingling. Do this for at least 2-4 weeks (up to 12 weeks for max benefit). This will improve your performance in high-intensity efforts lasting 30 seconds to 10 minutes.

Scheduled napping (20-40 minutes) during night shifts improves alertness and reduces sleepiness in shift workers.

Take a 20-40 minute nap during your night shift, ideally between 2-3 AM, or before your shift starts. Allow 15 minutes after waking up for 'sleep inertia' to pass before performing high-risk tasks.

Long-term maintenance of weight loss is significantly predicted by and facilitated by regular physical activity, with exercise serving as the strongest predictor of success in both correlational and randomized controlled trials.

To keep weight off long-term, you must incorporate regular physical activity into your lifestyle. Dieting alone is rarely enough to prevent weight regain. Aim for moderate aerobic exercise (like brisk walking) 3-4 times a week. Supervised exercise programs may help you build the habit and adhere to the routine better than unsupervised efforts.

The addition of exercise to a dietary intervention preserves lean body mass better than dieting alone, although the primary benefit for weight maintenance is behavioral adherence rather than metabolic preservation.

If you are losing weight, adding exercise helps protect your muscle mass better than dieting alone. While the calorie burn from exercise might seem small, it helps you keep the muscle you have, which supports long-term metabolic health and weight maintenance.

Adopting a Mediterranean diet, characterized by high fiber, polyphenols, and unsaturated fats, promotes beneficial gut microbiota growth and reduces the risk of obesity, cardiovascular disease, and metabolic syndrome.

To lower your risk of heart disease and obesity, shift your diet toward the Mediterranean pattern. Prioritize whole foods like vegetables, fruits, whole grains, legumes, nuts, and seeds. Use olive oil as your primary fat source and include oily fish like salmon or sardines regularly. Limit red meat, sweets, and highly processed foods. This dietary pattern supports beneficial gut bacteria and reduces inflammation.

In a health context, High-Intensity Interval Training (HIIT) is a viable and effective method to improve cardiorespiratory fitness and reduce morbidity/mortality risk, often superior to Moderate-Intensity Continuous Training (MICT) when volume is matched.

If you are sedentary or have health conditions, HIIT is a highly effective way to boost heart health and longevity in less time than traditional cardio. Aim for intervals above moderate intensity (vigorous) at least 3 times a week, keeping total session time under 15 minutes. Start with medical clearance if you have conditions, but do not let fear of intensity prevent you from trying this time-efficient strategy.

Weight loss of at least 10% is required to improve all features of NASH and stabilize or improve fibrosis, while a 5% loss stabilizes fibrosis.

To reverse NASH, aim for a 10% reduction in your total body weight. This level of loss has been shown to improve all features of the disease. If 10% feels unattainable, start with 5%, as this amount is sufficient to stabilize or improve liver fibrosis, preventing progression to cirrhosis. Combine this caloric deficit with increased physical activity and consider a Mediterranean diet for additional hepatic benefits.

Vigorous aerobic exercise improves body composition, cardiorespiratory fitness, and insulin resistance in women with PCOS, whereas resistance training and combined aerobic-resistance interventions show inconsistent or no significant benefits on these specific metabolic markers.

For PCOS management, prioritize vigorous aerobic exercise (like brisk walking, cycling, or swimming) for at least 75-150 minutes per week. This specific modality has the strongest evidence for improving insulin resistance and body composition. Resistance training alone may not provide the same metabolic benefits, so use it as a supplement, not a replacement, for aerobic activity.

Performing endurance training before strength training within the same session yields significantly greater improvements in aerobic capacity and endurance performance than performing strength training before endurance training or performing them separately.

If you combine running and weightlifting in one session, do the running first. This study shows that doing endurance training before strength training leads to significantly better improvements in your 4km run time and aerobic capacity (VO2max) compared to doing weights first. Fatigue from strength training likely compromises the quality of your subsequent endurance work, reducing aerobic adaptations.

Acute ingestion of 6 mg/kg caffeine potentiates skeletal muscle force output during low-frequency (20 Hz) stimulation, an effect mediated by enhanced calcium release from the sarcoplasmic reticulum, and this benefit occurs regardless of habitual caffeine consumption status.

If you consume caffeine regularly, you can still benefit from its performance-enhancing effects, specifically for endurance or submaximal efforts. Take 6 mg per kg of body weight about 1-2 hours before activity. This will help your muscles maintain force during prolonged, submaximal efforts by improving calcium release in the muscle cells, but it will not significantly boost your one-rep max or sprint power.

Gamified digital interventions produce a small-to-medium increase in physical activity compared to control groups, with effects persisting after the intervention ends.

To increase physical activity, try using a gamified app or wearable that tracks your steps or workouts and rewards you with points, badges, or social competition. The key is consistency; these tools work best when integrated into your daily routine for at least a few weeks. While the effect is modest, it is superior to standard tracking without game elements and can help sustain activity levels even after the initial novelty wears off.

Interactive computer-based interventions produce greater weight loss and better weight maintenance than minimal or no intervention (usual care/pamphlets) in overweight or obese adults, though they result in slightly less weight loss compared to in-person treatments.

Use an interactive computer program for weight loss if you want a structured, evidence-based approach that is more effective than doing nothing or reading pamphlets. However, do not expect it to work as well as seeing a human coach in person. It is a good starting point or maintenance tool, but for maximum weight loss, in-person support is superior.

For healthy adults aged 21–40, a walking cadence of 100 steps/min serves as a valid heuristic threshold for moderate intensity (3 METs), and 130 steps/min serves as a valid threshold for vigorous intensity (6 METs).

To hit moderate exercise intensity, aim for 100 steps per minute. To hit vigorous intensity, aim for 130 steps per minute. You can track this using most pedometers or smartwatches that display step cadence. This is a simple, objective way to ensure your walking meets public health guidelines for intensity without needing complex heart rate monitoring.

Orlistat (120 mg three times daily with meals) produces significant weight loss and improves coronary heart disease risk profiles in obese patients, primarily by reducing dietary fat absorption.

Take 120 mg of Orlistat with each main meal containing fat. This blocks about 30% of dietary fat absorption. Stick to a low-fat diet to minimize gastrointestinal side effects like oily spotting. This leads to greater weight loss and improved heart disease risk factors compared to diet and placebo alone.

Strength training (heavy resistance, explosive resistance, or plyometric) performed 2-3 times per week improves running economy, time trial performance, and maximal sprint speed in middle- and long-distance runners.

Add 2-3 strength sessions per week to your running program. Use heavy weights, explosive movements, or plyometrics. This will improve your running economy and race times without making you heavier or slower. Ensure your running volume and intensity remain consistent with your previous training.

Acute ingestion of 6 mg/kg caffeine significantly enhances total sprint work and peak power during prolonged intermittent-sprint exercise in team-sport athletes without increasing the rate of fatigue development.

Take 6 mg of caffeine per kg of body weight about one hour before your game or high-intensity training. For a 80kg athlete, this is 480mg (roughly 3-4 cups of coffee or 2-3 standard caffeine pills). This dose has been shown to increase your total sprinting work and peak power by roughly 7-8% during a typical team sport match without making you tire out faster. Be aware that you might feel 'amped' or restless, but this does not appear to negatively impact performance in trained athletes.

High-intensity resistance training (approx. 90% 1RM, 3-5 reps) produces greater improvements in muscular strength and lean arm mass than high-volume training (approx. 70% 1RM, 10-12 reps) in resistance-trained men over an 8-week period.

If you are an experienced lifter looking to maximize strength and muscle size, prioritize lifting heavier weights (around 90% of your one-rep max) for fewer reps (3-5) rather than doing many reps with lighter weights. Train 4 times a week, focus on progressive overload, and ensure you rest adequately (3 minutes) between sets. This approach yielded nearly double the strength and arm mass gains compared to high-volume training in this study.

Frequent consumption of takeaway and fast food (defined as eating out or purchasing prepared meals at least once a week) is associated with increased daily energy intake, higher body mass index (BMI), and increased risk of obesity and type 2 diabetes.

Frequent fast food consumption (defined as eating out or buying prepared meals at least once a week) is strongly linked to weight gain and metabolic issues. To mitigate this, limit fast food intake, as even occasional consumption adds significant calories (e.g., +130 kcal/meal) and unhealthy fats. Prioritize home-cooked meals to control energy density and nutrient quality.

Takeaway and fast foods are significantly higher in energy density, total fat, saturated fatty acids (SFAs), and trans fatty acids (TFAs) compared to home-prepared meals, contributing to adverse lipid profiles and increased risk of cardiovascular disease.

Fast food is inherently high in energy density and unhealthy fats. A single meal can exceed recommended daily limits for saturated and trans fats. To improve diet quality, minimize fast food consumption and choose meals with lower energy density and healthier fat profiles.

Exposure to structured online nutrition information (written or video formats) significantly improves nutrition knowledge scores in adults.

To improve your understanding of healthy eating, seek out concise, structured educational resources rather than trying to digest all advice at once. The study shows that reading 20 specific pieces of information or watching a short 7-minute video can significantly boost your nutrition knowledge. Focus on reputable sources like the NHS or British Heart Foundation, and don't worry if you don't have a degree; structured learning works for everyone.

Combined dietary weight loss and moderate-to-vigorous aerobic exercise improves health-related quality of life (HRQOL) and psychological health (depression, stress, social support) in overweight/obese postmenopausal women more effectively than diet or exercise alone.

For overweight or obese postmenopausal women, combining a calorie-restricted diet (aiming for 10% weight loss) with regular moderate-to-vigorous aerobic exercise (225 minutes per week) significantly improves physical functioning, mental health, and reduces stress compared to either intervention alone. While exercise alone did not significantly improve quality of life in this study, the combination did, suggesting that addressing both physical and psychological factors is key.