Browse the evidence

Longer-muscle length resistance training (LML-RT) may lead to greater increases in fascicle length (longitudinal hypertrophy) compared to shorter-muscle length resistance training (SML-RT), though evidence is mixed and methodologically limited.

Training at longer muscle lengths may help increase the length of your muscle fibers (fascicles), which can contribute to overall muscle size. However, current measurement methods are imperfect, so prioritize long-length training for overall hypertrophy rather than expecting specific longitudinal gains to be easily quantified.

The Adaptive Ketogenic–Mediterranean Protocol (AKMP) utilizes dynamic, biomarker-guided adjustments to metabolic adaptation (adaptive thermogenesis) to sustain weight loss, whereas GLP-1 agonists fail to counteract the resulting decline in energy expenditure.

If you are using a ketogenic or low-carb approach and hit a weight loss plateau, do not just restrict calories further. Monitor your metabolic markers (like ketones and blood sugar). If you stall, the protocol suggests dynamically adjusting your macronutrients—specifically increasing protein and adjusting fats—to leverage the metabolic advantage of ketosis and counteract the natural drop in energy expenditure that occurs during weight loss.

Supplementation with β-hydroxy β-methylbutyrate (HMB) may preserve fat-free mass and increase muscle strength in individuals undergoing weight reduction, although robust evidence in obesity patients is lacking.

HMB might help preserve muscle during weight loss, especially in older adults or those losing weight quickly. However, evidence is limited for obesity patients. Prioritize protein and exercise first; consider HMB as a potential add-on if affordable and after consulting a healthcare provider.

Normal protein diet combined with resistance exercise (NPD+RT) is more effective for weight loss than high-protein diet or resistance exercise alone.

A normal protein diet (0.8 g/kg) combined with resistance exercise is an effective strategy for weight loss, potentially outperforming high-protein diets. This approach preserves muscle mass while promoting fat loss.

Intermittent fasting (5:2 protocol) is a viable weight loss strategy for night shift workers, with the hypothesis that aligning fasting days with night shifts (5:2N) may improve insulin resistance compared to continuous energy restriction.

If you work night shifts, try fasting for 2 days a week. You can choose which days to fast, so pick the days that include your night shifts. On those days, eat very little (about 2100-2500 kJ). On the other 5 days, eat normally but don't overeat to make up for the fast days. This approach might help manage your weight and blood sugar better than just cutting calories every day.

Structured physical activity and exercise interventions reduce pain severity and improve physical function in adults with chronic pain, with effects generally being small-to-moderate and inconsistent across study types.

Start with structured, supervised exercise tailored to your condition (e.g., aerobic, strength, or flexibility). Expect small improvements in pain and function, not a cure. Consistency is key, but progress gradually to avoid flare-ups. The goal is to combat deconditioning and improve quality of life, not just eliminate pain instantly.

For stroke rehabilitation, exercise interventions are significantly more effective than drug interventions (anticoagulants and antiplatelets) in reducing mortality.

After a stroke, engaging in rehabilitation exercise (cardiorespiratory and muscle strengthening) is associated with a significantly lower risk of death compared to standard drug treatments. Discuss exercise-based rehab with your healthcare provider.

Exercise is an effective treatment for major depressive disorder, with walking/jogging, yoga, and strength training showing moderate to large reductions in symptoms compared to active controls.

Exercise is a valid, evidence-based treatment for depression, comparable to medication and therapy. For best results, choose modalities like walking, jogging, yoga, or strength training. While vigorous intensity yields stronger effects, even light activity provides clinically meaningful benefits. Prioritize modalities you find tolerable, such as yoga or strength training, to ensure adherence.

Weight loss improves OSA severity (AHI), but the benefit is non-linear, with diminishing returns after modest weight loss (approx. 8-10% or 10kg).

Losing weight helps your sleep apnea, but you don't need to lose a massive amount to see significant improvement. Most of the benefit comes from the first 10% of body weight lost. Focus on achieving modest weight loss first, as further loss may not significantly improve your apnea severity.

Engaging in muscle-strengthening activities (e.g., resistance training) for 30-60 minutes per week is associated with a 10-20% lower risk of all-cause mortality, cardiovascular disease, and total cancer compared to no muscle-strengthening activity.

To lower your risk of death and major diseases, aim for 30-60 minutes of muscle-strengthening activities (like lifting weights or bodyweight exercises) per week. You don't need to do it all at once; breaking it into 2-3 sessions is effective. This benefit exists even if you already do aerobic exercise like walking or running.

Combined muscle-strengthening and aerobic activities provide greater reductions in all-cause, cardiovascular, and total cancer mortality than either activity alone or neither.

For the best protection against death and major diseases, combine muscle-strengthening exercises with aerobic exercise. This combination offers significantly greater benefits (40% lower all-cause mortality) than doing either one alone.

Medium-term (7-23 weeks) and long-term (≥24 weeks) resistance exercise training significantly reduces systolic and diastolic blood pressure in adults, with greater magnitude of benefit observed in older adults and those with elevated cardiometabolic risk.

To lower blood pressure, engage in resistance training 2-3 times per week for at least 7 weeks. You do not need expensive equipment; bodyweight, bands, or machines all work. If you are older or have high blood pressure, the benefits are even more pronounced, making it a highly effective non-pharmacological strategy.

Consumption of two kiwifruits one hour before bedtime for four weeks significantly improves total sleep duration, sleep efficiency, and reduces wake after sleep onset in individuals with self-reported sleep disturbance.

Eat two kiwifruits one hour before bed every night for at least four weeks. This simple habit has been shown to increase total sleep time by nearly 40 minutes and improve sleep efficiency in people with sleep issues. The fruit provides serotonin, folate, and antioxidants that support sleep regulation.

Higher nut consumption is associated with a lower risk of coronary heart disease (CHD) events and stroke mortality, but there is no significant association with total stroke incidence.

Eating nuts may help you survive a stroke if one occurs, as nut consumption was linked to lower stroke mortality. However, it does not appear to prevent strokes from happening in the first place, as the risk of total stroke incidence was not significantly reduced.

Carbohydrate manipulation (loading) increases muscle size in physique athletes primarily through intramuscular glycogen supercompensation and associated water binding, but this strategy lacks experimental validation for aesthetic performance and carries risks of gastrointestinal distress and subcutaneous water retention.

If you are a physique athlete peaking for competition, do not blindly copy endurance athlete carb-loading protocols. Your body may not handle the same loads, leading to 'spilling over' (subcutaneous water) and bloating. Instead, experiment with moderate carbohydrate loads (3-6 g/kg) during training camp to see how your body responds. Minimize the number of variables you change at once (e.g., don't change carbs, water, and sodium simultaneously) to reduce psychological stress and make it easier to identify what works for your specific physiology.

Adherence to a vegan diet does not significantly alter the risk of primary cardiovascular disease events (including coronary heart disease, myocardial infarction, or stroke) compared to non-vegan diets, although it may lower intermediate markers like carotid artery intima-media thickness.

Switching to a vegan diet is unlikely to significantly change your risk of having a heart attack or stroke compared to a non-vegan diet, based on current evidence. While vegans may have better intermediate markers like artery thickness, the hard outcomes (heart attacks, strokes) are similar. To maximize heart health on a vegan diet, ensure you are getting adequate B12, Omega-3s (EPA/DHA), and other nutrients, as deficiencies may offset potential benefits.

A 16-week nutritional intervention combining whey protein with leucine and fish oil with vitamin D3 increases total lean mass in very old adults with low functional capacity, despite failing to improve physical performance metrics like strength or gait speed.

For very old adults with low function, a specific combination of whey protein (with leucine) and fish oil (with Vitamin D) can increase lean mass by about 0.5 kg over 4 months. However, this did not improve strength or walking speed. Adherence to the fish oil component dropped significantly over time, suggesting that simpler regimens or better palatability might be needed for long-term use.

High-volume static stretching is a viable therapeutic alternative or supplement for counteracting immobilization-induced muscle atrophy in patients who are bedridden, post-surgery, or have mobility restrictions.

If you are recovering from surgery or an injury and cannot lift weights, use a stretching device or manual stretching for 30 minutes to 2 hours daily. This can help prevent muscle loss during immobilization. Consult your doctor before starting.

Proximity to failure (4-6 RIR vs 1-3 RIR vs 0 RIR) does not significantly affect muscle hypertrophy (muscle thickness) in trained men over an 8-week period.

For muscle growth, it does not matter much whether you train to failure or stop with 1-3 reps left. Both approaches can yield similar hypertrophy. Focus on consistency and progressive overload rather than chasing failure on every set.

Modifying the physical structure of beef (minced vs. steak) while keeping nutrient composition identical does not significantly alter muscle protein synthesis (MPS) rates, but it does significantly improve whole-body net protein balance by enhancing digestion and absorption kinetics.

If you are eating enough protein (around 26g+ per meal) and engaging in resistance training, the physical form of your meat (minced vs. steak) likely does not change how much muscle you build directly. However, minced meat may be easier to digest and absorb, leading to better overall protein retention in the body, which might be beneficial for older adults or those with chewing difficulties.

Phytotherapeutic agents (e.g., Green Tea, Nigella Sativa, Bofu Tsusho San) produce statistically significant but clinically less relevant weight loss compared to modern AOMs.

Herbal supplements like Green Tea or Black Seed may help with modest weight loss, but they are not as effective as prescription medications like Semaglutide or Tirzepatide. Manage your expectations accordingly.

Adherence to a zero-carbohydrate diet (consuming exclusively animal-sourced foods) is associated with self-reported improvements in metabolic health, digestive function, mood, and physical composition, driven by the elimination of plant-based antinutrients and the induction of nutritional ketosis.

If you are considering a zero-carb diet, expect a significant social adjustment. You will likely face skepticism from healthcare providers and peers. The paper suggests that engaging with online communities can provide necessary support and validation. Physically, you may experience an initial 'adaptation phase' with GI distress, which typically resolves. The diet involves eating only animal products (meat, fish, eggs, dairy) and potentially fasting, with no carbohydrates.

In women, initial skeletal muscle size (leg fat-free mass and quadriceps CSA) is positively associated with the magnitude of muscle atrophy following 14 days of immobilization.

For women undergoing immobilization, having larger muscles prior to injury may be associated with greater absolute muscle loss. However, this finding is based on a small group and needs confirmation. Do not let this discourage building muscle; focus on proper rehabilitation.

Metabolic and bariatric surgery (MBS) improves depressive, anxiety, and non-normative eating symptoms, as well as attention, compared to nonsurgical controls, though evidence certainty is low to very low.

If you have obesity and struggle with depression, anxiety, or disordered eating, metabolic and bariatric surgery (MBS) may help improve these symptoms more than nonsurgical treatments. However, the evidence is not yet high-quality, and you should be aware that MBS might slightly increase the risk of substance use disorders or suicide in the long term (>2 years). Regular mental health monitoring is essential after surgery.