Browse the evidence

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.

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.

Nutrition interventions significantly reduce weight, BMI, and waist circumference in people with severe mental illness (SMI), with larger effect sizes when delivered by dietitians or initiated at antipsychotic therapy start.

For individuals with severe mental illness, structured nutrition interventions are effective for weight management. The most effective approach involves dietitian-led individualized counseling, ideally starting when antipsychotic therapy begins. These interventions should focus on behavior change strategies like goal-setting and food literacy rather than just providing information.

Lifestyle interventions including healthy diet, physical activity, and behavioral strategies are the first-line treatment for PCOS, improving metabolic, reproductive, and psychosocial outcomes.

For women with PCOS, lifestyle changes are the most important first step. Focus on incorporating a healthy diet and aiming for at least 150 minutes of moderate exercise per week (or 75 minutes of vigorous exercise). For better weight loss, aim for 250 minutes of moderate activity. Use behavioral strategies like setting goals, tracking progress, and problem-solving to stick with these changes long-term.

Modifying the structure, composition, and portion size of food (e.g., using meal replacements or prepared meals) is more effective for long-term weight control than comprehensive lifestyle change programs that rely on self-regulation and calorie counting.

Stop relying solely on willpower and calorie counting. Instead, structure your food environment by using meal replacements, prepared meals, or strict meal plans that dictate what and how much you eat. This removes the need for constant decision-making and portion estimation, which are difficult to maintain long-term.

Interventions promoting walking in groups significantly increase physical activity in adults, with a medium overall effect size (d = 0.52).

Join a local walking group. Look for groups that offer flexible times and durations, and consider starting with shorter walks (e.g., 10-20 minutes) and gradually increasing. The social aspect is key to maintaining the habit, so choose a group that feels welcoming.

Resistance training is the most effective form of exercise for improving protein synthesis rates and reversing muscle loss, superior to aerobic exercise alone.

Do resistance training (lifting weights or using resistance bands) at least twice a week. This is more important for building muscle than just walking or cycling. Work with a physical therapist to adapt the exercises to your strength level.

Short bouts of exercise (less than 10 minutes) are effective and sufficient for health benefits, replacing the previous requirement for continuous 10-minute bouts.

You don't need to find a solid block of time. Break your 150 minutes of moderate activity into 10-minute chunks or even shorter bouts throughout the day. They all count toward your weekly goal.

Physical activity suppresses vascular endothelial cell senescence and improves vascular function in older adults.

Regular exercise helps keep your blood vessels young by reducing cellular aging markers. Aim for consistent physical activity to maintain vascular health as you age.

Achieving significant weight loss within the first six months of a dietary intervention is the primary predictor of long-term retention and success (loss of ≥5% body weight) over two years.

Your first six months are the most critical. If you lose a significant amount of weight early on, you are much more likely to stick with the program and succeed long-term. If you are struggling to lose weight in the first few months, seek extra support or adjust expectations, as this is the biggest risk factor for dropping out.

Holidays trigger a significant decrease in dietary adherence, followed by a partial rebound, requiring amplified intervention during these periods.

Expect your adherence to drop during holidays. This is a common challenge, so plan for it and focus on getting back on track as soon as possible.

A structured neuromuscular training program significantly reduces the risk of acute non-contact leg injuries in female floorball players.

If you are a female floorball player, incorporate a 20-30 minute neuromuscular training session before your regular practice 2-3 times a week. Focus on balance, body control, and proper technique for sports-specific movements. This simple addition can significantly lower your risk of non-contact leg injuries like ankle sprains and knee ligament issues.

Consumer wearable activity tracker (CWAT)-based interventions significantly increase daily physical activity (steps) and improve cardiometabolic health markers (systolic blood pressure, waist circumference, LDL cholesterol) in patients with chronic diseases compared to control groups.

If you have a chronic condition, using a wearable activity tracker combined with a simple goal-setting strategy (like aiming for 10,000 steps or increasing your daily steps by 10%) can significantly boost your physical activity. This increase in movement leads to measurable improvements in blood pressure, waist size, and cholesterol levels. The key is consistency and using the device's feedback, potentially supported by brief counseling or phone calls, to maintain motivation over several months.

Postoperative recovery or increase in physical activity significantly increases the likelihood of success (excess weight loss >50%) after laparoscopic adjustable gastric banding.

If you are getting a gastric band, you must commit to increasing your physical activity. The study shows that patients who do not recover or increase their activity are 2.3 times more likely to fail (lose less than 50% of excess weight) compared to those who do. Start moving as soon as possible after surgery.

Adherence to dietary counseling and changing eating habits significantly increases the likelihood of success (excess weight loss >50%) after laparoscopic adjustable gastric banding.

If you are getting a gastric band, you must commit to changing your eating habits. The study shows that patients who do not change their eating habits are 2.2 times more likely to fail (lose less than 50% of excess weight) compared to those who do. Follow diet counseling strictly.

Increasing physical activity levels after menopause, even if one was previously inactive, reduces breast cancer risk compared to remaining sedentary.

If you were inactive before or around menopause, you can still lower your breast cancer risk by becoming moderately active now. You do not need to be a high-level athlete. Aim for about 30 minutes of walking at an average pace on most days of the week. This change in behavior can provide a protective benefit even if you were previously sedentary.

A 50-day team-based online social networking physical activity intervention delivered via a Facebook app with pedometers significantly increases moderate-to-vigorous physical activity (MVPA) and walking time in insufficiently active adults during the intervention period.

Join a team of friends on a free Facebook app called 'Active Team' for 50 days. You get a pedometer and are encouraged to hit 10,000 steps a day. The app uses gamification like awards and gifts, and lets you chat with your team. This structure helped participants significantly increase their walking and moderate-to-vigorous activity during the 50 days.

An internet-based health intervention (Guide to Health) significantly increases fruit and vegetable servings and fiber intake in adults compared to a waitlist control, with effects sustained at 16-month follow-up.

To improve your fruit and vegetable intake and fiber, use a structured online program that guides you through weekly goals. The key is consistency: complete one module per week, set a specific strategy (like taking fruit to work), and track your progress. If possible, join a group or community setting (like a church or workplace) that reinforces these goals with visual reminders and shared targets, as this significantly boosts adherence and long-term results.

Adding church-based environmental supports (GTH-Plus) to an internet intervention significantly increases physical activity (step counts) and improves weight management compared to the internet intervention alone (GTH-Only) or a control group.

To boost your physical activity, combine an online tracking program with real-world social support. Join a group (like a church, workplace, or community club) that sets collective goals and provides regular feedback. Use a pedometer or fitness tracker to monitor your steps, aiming to increase your daily count by 500 steps each week until you reach a sustainable target. The social reinforcement and public recognition of group progress can significantly enhance your adherence and results.

A primary care nurse-delivered walking intervention using pedometer and accelerometer feedback significantly increases objectively measured step counts and moderate-to-vigorous physical activity (MVPA) in older adults (60-75 years) at 3 and 12 months.

For adults aged 60-75, a structured walking program guided by a healthcare professional can effectively increase daily steps and moderate-to-vigorous activity. The key is using feedback tools like pedometers and accelerometers to set incremental goals and monitor progress, rather than just receiving general advice. This approach is safe and well-received by this demographic.

A behavioral intervention combining eHealth self-monitoring, telephone counseling, and provider endorsement produces modest but sustained weight loss and improved blood pressure control in socioeconomically disadvantaged primary care patients over 24 months.

For individuals in underserved communities, a structured, technology-supported behavioral program with regular coaching and provider support can lead to modest but meaningful weight loss and better blood pressure control over two years. The key is consistency and using available community resources, rather than expecting rapid or large-scale changes.

Regular moderate-to-intense physical activity (>1,500 METs) reduces the risk of obesity by 40–65% and attenuates cardiovascular risk factors through anti-inflammatory effects and increased nitric oxide production.

To significantly lower your risk of obesity and heart disease, aim for moderate-to-intense physical activity totaling over 1,500 METs. This isn't just about walking; it involves activities that raise your heart rate and breathing. Combine this with healthy eating and weight management for the best protection against chronic diseases.

High-dose physical activity (approaching 300 minutes per week) is critical for the long-term maintenance of weight loss and prevention of weight regain.

If you have lost weight, keeping it off is harder than losing it. The data shows that successful maintainers exercise for about 5 hours a week (approx. 275-300 minutes). If you stop exercising or drop your volume significantly, you are likely to regain the weight. Treat this high volume as a non-negotiable part of your lifestyle, not an option.

Behavioral sleep interventions (e.g., sleep hygiene, light chronotherapy, exercise) significantly improve sleep quality in dementia caregivers compared to control conditions.

Seek out behavioral sleep interventions such as sleep hygiene education, light therapy, or moderate exercise. These low-cost strategies are proven to significantly improve sleep quality for dementia caregivers, countering the belief that their stress makes sleep improvement impossible.