Browse the evidence

Younger men require longer rest intervals (3-5 minutes) than shorter intervals (1 minute) to maximize strength and hypertrophy gains.

If you are a young man, rest 3-5 minutes between sets for strength and muscle building. This allows you to lift heavier weights with more reps, leading to better results. Shorter rests will save time but reduce your strength gains.

Glucagon-like peptide-1 receptor agonists (GLP-1 RAs) such as semaglutide and tirzepatide are effective for weight loss in people with HIV, with tirzepatide showing the largest mean percent change in weight.

If lifestyle changes are not enough to manage weight gain from HIV medication, ask your doctor about GLP-1 RAs like semaglutide or tirzepatide. These drugs are highly effective for weight loss and can help reduce fat deposits. They are used alongside diet and exercise.

GLP-1 receptor agonists (semaglutide 2.4 mg) and other pharmacological interventions (liraglutide, orlistat) significantly reduce body weight and cardiovascular risk factors in obese patients, with semaglutide showing superior weight loss compared to placebo.

For obese individuals without diabetes, high-dose semaglutide (2.4 mg) can achieve substantial weight loss (approx. 15%) compared to placebo, which may improve cardiovascular risk factors. This is a viable option when lifestyle changes are insufficient.

Aerobic exercise reduces visceral adipose tissue (VAT) independently of weight loss, and 150 minutes per week is sufficient for this reduction, whereas resistance training effects on VAT are equivocal.

Aim for 150 minutes of aerobic exercise per week to reduce visceral fat. You do not necessarily need to lose weight on the scale for this benefit, and doing more than 150 minutes may not provide additional VAT reduction.

Outdoor green cycling (3x/week, 30-40 mins) significantly improves psychological well-being (reduced stress, mood disturbance, and depression; increased vigor) and glycemic control (HbA1c) compared to indoor stationary cycling in patients with knee osteoarthritis and type 2 diabetes.

If you have knee pain and diabetes, try cycling outdoors three times a week for 30-40 minutes. This specific type of 'green exercise' not only helps lower your blood sugar better than indoor cycling but also significantly reduces stress and improves your mood, making you more likely to stick with it. Start with supervision to ensure proper form and safety.

Moderate-to-vigorous physical activity (MVPA) performed during morning hours (06:00–12:00) significantly reduces the risk of developing diabetic retinopathy (DR) and slows retinal thinning, whereas late-night physical activity increases DR risk.

If you have diabetes or are at risk, aim for at least 150 minutes of moderate-to-vigorous exercise per week. Crucially, try to schedule these workouts in the morning (between 6 AM and 12 PM). This timing appears to offer the strongest protection against diabetic eye disease. Avoid exercising late at night (midnight to 6 AM), as this may increase your risk.

Therapeutic Patient Education (TPS) and motivational interviewing using the '5A' method (Assess, Advise, Agree, Assist, Arrange) are the foundational, first-line interventions for obesity management in primary care, superior to generic advice.

Stop telling patients to just 'eat less and move more.' Instead, use the '5A' framework: Assess their readiness, Advise on risks/benefits, Agree on SMART goals, Assist with barriers, and Arrange follow-up. Focus on empathy and reducing stigma to build trust.

Higher baseline daytime physical activity levels are associated with better long-term endothelial function (measured by Reactive Hyperemia Index) in both patients with type 2 diabetes and non-diabetic controls.

Maintain higher levels of daytime physical activity to support vascular health. This study found that even modest increases in daily movement (measured objectively) were linked to better blood vessel function five years later, regardless of whether you have type 2 diabetes or not. Focus on consistent daily movement rather than just intense workouts.

A self-paced wellness program delivered via a mobile app combined with motivational interviewing significantly improves dietary behavior scores in Head Start educators compared to a control group.

If you are a Head Start educator, try using a self-paced wellness app that offers remote support. The study shows that combining app usage with motivational coaching significantly improves dietary habits over six months, even if you only use the app or only talk to a guide. Start by accessing the app and seeing if you want to speak with a guide; the flexibility is key to making it work for your busy schedule.

Creatine monohydrate supplementation (loading then maintenance) significantly improves spike and block jump performance in elite volleyball players.

Consider a 4-week creatine loading protocol (5g daily after an initial loading phase) to potentially improve your vertical jump and blocking efficiency. This is one of the most researched and effective supplements for power sports.

Regular physical exercise reduces the risk of cardiovascular disease (CVD) and CVD mortality in a dose-dependent manner, with moderate activity providing significant risk reduction compared to sedentary behavior.

Start moving. You don't need to be an elite athlete. The American Heart Association recommends 150 minutes of moderate activity (like brisk walking) or 75 minutes of vigorous activity per week. Even less than that provides benefits. Consistency matters more than intensity for initial gains. Make it a habit, as 50% of people drop out after 6 months.

Aerobic exercise training lowers systolic blood pressure by 5–7 mmHg, and dynamic resistance exercise lowers it by 2–3 mmHg, providing benefits comparable to first-line antihypertensive medications.

If you have high blood pressure, exercise is a first-line treatment, not just an add-on. Aim for aerobic exercise to get the biggest drop in systolic BP (5-7 mmHg). Resistance training also helps. This can be as effective as some blood pressure medications.

Lifestyle modification (smoking cessation, diet, exercise) is the fundamental basis for managing cardiovascular risk in perimenopausal women with type 2 diabetes, though long-term weight maintenance is difficult.

Stop smoking, eat more veggies, limit salt, and move 30 minutes a day. These are the most important steps you can take. However, if you struggle to keep the weight off or control your numbers, don't blame yourself. You likely need medication (like SGLT2s or GLP-1s) to help you succeed.

Consuming grain foods that meet a carbohydrate-to-fiber ratio of ≤10:1 is associated with significantly lower levels of cardiometabolic risk factors, specifically triacylglycerols, the triacylglycerol/HDL-c ratio, fasting insulin, and HOMA-IR.

To improve insulin sensitivity and lipid profiles, prioritize grain foods that have a carbohydrate-to-fiber ratio of 10:1 or lower. This means for every 10 grams of carbohydrates, there should be at least 1 gram of fiber. Replacing white rice and white bread with brown rice and whole wheat bread (which typically meet this ratio) significantly increases fiber, magnesium, and zinc intake while reducing total carbohydrates and added sugars.

Substituting white rice and white bread with brown rice and whole wheat bread, respectively, leads to favorable changes in nutrient intake, specifically increasing fiber, magnesium, zinc, and vitamin E while decreasing total carbohydrates and certain B vitamins.

If you currently eat white rice and white bread, switching to brown rice and whole wheat bread will significantly boost your fiber and magnesium intake. Be aware that this switch might slightly reduce your intake of some B vitamins, so ensure you are getting these from other sources like meat, eggs, or fortified foods.

Lifestyle interventions (healthy diet, physical activity, smoking cessation) and pharmacotherapy (metformin) significantly reduce the incidence of type 2 diabetes.

To prevent type 2 diabetes, focus on maintaining a healthy diet, engaging in regular physical activity, and quitting smoking. If you are at high risk, discuss metformin with your doctor. Regular monitoring of blood glucose, kidney function, eyes, and feet is essential for those diagnosed.

Tirzepatide (10 mg and 15 mg) achieves statistically equivalent total body weight loss to sleeve gastrectomy (SG), with both interventions demonstrating superior efficacy compared to other pharmacotherapies.

If you are an adult with obesity, high-dose Tirzepatide (10-15 mg weekly) can help you lose approximately 21% of your body weight, which is statistically the same amount of weight loss achieved by sleeve gastrectomy surgery. This makes it a highly effective non-surgical option, though it requires weekly injections and lifestyle modifications.

Gelesis100, a nonsystemic superabsorbent hydrogel taken orally before meals, produces statistically significant greater weight loss compared to placebo in adults with overweight or obesity.

Take three 2.25g capsules of Gelesis100 with 500ml of water 20-30 minutes before your two main meals. Combine this with a modest caloric deficit (300 kcal/day) and 30 minutes of daily walking. Expect about 6.4% weight loss over 24 weeks, which is statistically better than placebo but requires strict adherence to the timing and hydration instructions.

Patients with prediabetes or drug-naive type 2 diabetes achieve significantly higher odds of substantial weight loss (≥10%) with Gelesis100 compared to placebo.

If you have prediabetes or early type 2 diabetes, Gelesis100 may be particularly effective for you, offering much higher odds of losing 10% or more of your body weight compared to those with normal blood sugar.

Postoperative exercise training in adults undergoing bariatric surgery leads to greater weight loss, increased VO2max, and improved muscle strength compared to usual care without exercise.

After bariatric surgery, adding exercise training (3 sessions per week for 3 months) can help you lose more weight, improve your cardiorespiratory fitness, and increase muscle strength. Start with small, manageable sessions and gradually increase intensity and duration.

Sustained 25% caloric restriction for 24 months significantly improves cardiometabolic risk factors (visceral adipose tissue, blood pressure, lipid profile, and 10-year CVD risk) in healthy nonobese individuals, with benefits persisting during weight maintenance.

If you are healthy and not obese, sustaining a moderate caloric deficit (around 25% less than your maintenance needs) for two years can significantly lower your risk of heart disease and improve your metabolic health. This includes reducing dangerous visceral fat, lowering blood pressure, and improving cholesterol levels. These benefits persist even after you stop losing weight, as long as you maintain the lower calorie intake. This suggests that long-term dietary habits, not just short-term weight loss, are key to cardiovascular health, even for those with a normal BMI.

Behavioral weight management interventions delivered in primary care result in statistically significant weight loss (mean difference -2.3 kg) and waist circumference reduction (-2.5 cm) compared to no treatment or minimal intervention at 12 months.

If you have obesity, ask your primary care doctor about a behavioral weight management program. Look for programs that offer at least 12 contacts (visits or calls) over a year. These programs, delivered by nurses, health coaches, or GPs, have been proven to help adults lose an average of 2.3 kg and reduce waist size, which brings health benefits even if the number seems modest.

Interventions providing 12 or more contacts result in significantly greater weight loss than those providing fewer than 12 contacts.

When choosing a weight management program, prioritize one that offers at least 12 interactions (calls or visits) over the course of the year. More contact leads to better weight loss results, regardless of whether the provider is a doctor, nurse, or health coach.

Lifestyle interventions with high intensity (>28 sessions/year) and sustained duration achieve clinically meaningful weight loss (>5%), whereas lower intensity interventions yield modest, less sustained results.

To lose more than 5% of your body weight and keep it off, you need a high-touch lifestyle program with at least 28 sessions (more than twice a month) in the first year. Standard, low-frequency advice is unlikely to produce clinically significant results.