Browse the evidence

The prevalence of Metabolic Syndrome in the Asia-Pacific region is increasing over time (secular trends) in countries like China, South Korea, and Taiwan.

Metabolic Syndrome rates are rising in China, South Korea, and Taiwan. This trend is driven by lifestyle changes, so focusing on diet and exercise is crucial to prevent further increases.

Dietary improvements in the US between 1999 and 2012 were not uniform across all demographic groups, with significant disparities persisting or worsening for non-Hispanic Black and Mexican American adults, as well as those with lower income levels.

Public health initiatives must target specific demographic groups with tailored interventions, as general dietary improvements have not reached all communities equally.

Weight stigma in healthcare settings leads to poorer quality of care, delayed medical attention, and worse health outcomes for patients with obesity.

If you have obesity, advocate for your health by seeking providers who focus on behaviors and metabolic markers rather than just weight. If you feel dismissed or stigmatized, seek a second opinion. Healthcare providers should be trained to recognize and mitigate their own biases to ensure equitable care.

Prolonged exposure to television introduces Western beauty ideals (thinness, blonde hair, blue eyes) into previously isolated communities, leading adolescent girls to adopt negative eating behaviors and body dissatisfaction.

For communities or individuals newly exposed to global media, be aware that rapid adoption of thin-ideal body standards can lead to unhealthy dieting and purging. Proactively build media literacy to contextualize images as commercial constructs rather than health goals.

Stepping intensity (cadence) is not independently associated with lower mortality rates after accounting for total step volume.

You do not need to walk fast to reduce your risk of death. Focus on increasing your total number of steps. If you walk slowly, that still counts toward your daily goal. The benefit comes from the volume of steps, not how fast you take them.

Mobile phone app interventions do not result in a statistically significant increase in physical activity compared to control groups.

Do not rely on a mobile app alone to significantly increase your physical activity levels. While apps help with weight loss, this review found they do not significantly boost physical activity compared to other methods. Focus on other strategies for increasing activity.

Estrogen suppresses food intake by acting on hypothalamic neurons (POMC, NPY) and reducing orexigenic signals like Neuropeptide Y (NPY) and Ghrelin.

Estrogen helps regulate your appetite by signaling to your brain to eat less. When estrogen drops, this signal weakens, potentially leading to increased hunger.

Urbanization and higher socioeconomic status (specifically higher education levels in women and white/urban demographics in men) are strongly associated with increased obesity and abdominal obesity rates in South African adults.

If you live in an urban area in South Africa, especially if you are a woman, your risk of obesity is significantly higher due to environmental factors like diet changes and reduced physical labor, not just personal choice. Public health efforts should target urbanization-related lifestyle changes and address cultural perceptions that equate larger body size with health and prosperity. Regular screening using objective measures like waist circumference is recommended, as self-perception of weight is often inaccurate.

CPAP therapy normalizes subjective daytime sleepiness (measured by ESS) in a dose-dependent manner, but fails to normalize objective vigilance (MWT) or quality of life (FOSQ) in a substantial proportion of patients even with optimal adherence.

If you have moderate to severe sleep apnea, using CPAP for at least 7 hours a night significantly improves how sleepy you feel during the day. However, do not assume you will feel 100% normal or have perfect energy levels just because you are using the machine correctly. About 1 in 5 to 1 in 3 users still have residual sleepiness or quality of life issues despite perfect adherence. If this happens to you, do not stop using the CPAP. Instead, consult your doctor to check for other causes of fatigue, such as depression, obesity, or other sleep disorders.

The term 'food addiction' is scientifically inaccurate and misleading; 'eating addiction' is the correct terminology for addictive-like eating behavior because it reflects a behavioral addiction rather than a substance-based one.

Stop using the term 'food addiction' when discussing your relationship with food. It is scientifically inaccurate and shifts blame to the food itself. Instead, recognize it as 'eating addiction,' which highlights that the issue lies with the behavior and psychological patterns of eating, not the chemical properties of the food. This shift empowers you to focus on changing behaviors and environmental cues rather than just avoiding specific nutrients.

Poor social engagement (including poor social network and poor social support) is associated with a significantly increased risk of developing dementia.

Prioritize building and maintaining a reliable social network and seeking social support, as these structural aspects of socialization are linked to a lower risk of dementia. Focus on objective measures like having a close friend, regular contact, and support systems rather than just subjective feelings of loneliness, which showed less consistent protective effects in this analysis.

Overweight and obesity in children are markers for, rather than the direct cause of, poor academic performance, which is more strongly linked to socioeconomic status and poor nutrition.

Educators and policymakers should not assume that overweight children are failing academically because of their weight. Instead, they should address underlying factors like poverty, nutrition, and social stigma, which are the true drivers of academic performance.

Micronutrient supplements (specifically multivitamins, iron, calcium, and potassium) are a leading cause of emergency department visits due to swallowing problems (choking/dysphagia) in adults aged 65 and older.

If you are over 65, be cautious with large micronutrient pills (like calcium or iron) as they can cause choking or swallowing difficulties. Look for smaller pills or alternative forms like liquids or powders. Take pills one at a time with adequate water.

Women present with different symptoms of Obstructive Sleep Apnea (OSA) than men, often lacking classic symptoms like loud snoring, leading to underdiagnosis and delayed treatment.

If you are a woman experiencing chronic fatigue, insomnia, or depression, ask your doctor about Obstructive Sleep Apnea (OSA) even if you do not snore loudly. Women often present with these 'non-classic' symptoms, and standard screening tools designed for men may miss your condition. Request a sleep study if symptoms persist.

Autophagy in the hypothalamus regulates food intake by modulating the expression of AgRP neurons in response to starvation and free fatty acid levels.

Fasting triggers a brain-based hunger signal (AgRP) that is dependent on the brain's ability to recycle stored fat (lipophagy). If you are trying to fast, ensuring your brain's autophagy is functioning may help manage hunger cues. However, this is a complex neural process and not something that can be directly 'controlled' by diet alone.

Ethnic minority and low-income children are disproportionately exposed to high-calorie, low-nutrient food marketing through heavier media use and targeted advertising, which increases their consumption of energy-dense foods and contributes to higher obesity rates.

For families in low-income or minority communities, the risk of obesity is heightened by disproportionate exposure to food marketing. To counter this, prioritize media literacy education for children, helping them recognize advertising tactics. Limit screen time where possible, and be aware that targeted ads often promote energy-dense, low-nutrient foods. Schools and policymakers can help by strengthening advertising guidelines and teaching critical thinking about media messages.

Training primary care practitioners in patient-centred care improves patient communication, treatment satisfaction, and psychological wellbeing, but is associated with higher body mass index and triglyceride levels compared to routine care.

If you are a clinician, training in patient-centred communication will likely make your patients happier and feel better understood, but be aware that this approach alone may not improve—and might even worsen—weight and triglyceride levels if it replaces active behavioral negotiation. You must explicitly balance listening with directing to prevent adverse metabolic outcomes.

Intensive lifestyle interventions (diet, exercise, or combined) fail to maintain long-term weight loss or behavioral changes beyond 6 months in overweight individuals with a family history of diabetes, resulting in no sustained difference in diabetes risk between treatment groups at 2 years.

Standard lifestyle interventions (diet and exercise programs) often fail to maintain weight loss or health benefits beyond 6 months for high-risk individuals. While initial weight loss is beneficial, the lack of long-term maintenance means that standard programs may not be sufficient for preventing diabetes over 2 years. More effective strategies to sustain engagement are needed.

Rapid and large initial weight loss is associated with better long-term weight maintenance compared to slow, gradual weight loss.

Do not be afraid of losing weight quickly. Evidence shows that rapid initial loss does not lead to worse long-term results and may actually help you maintain a lower weight. Focus on achieving a significant deficit rather than slowing down to avoid 'rebound'.

Setting realistic weight-loss goals does not improve weight-loss outcomes compared to ambitious goals.

Do not lower your goals to 'realistic' levels. Setting ambitious goals does not lead to worse outcomes and may lead to better weight loss. Focus on achieving significant weight loss rather than setting easily achievable targets.

Food-frequency questionnaires (FFQs) systematically overestimate the intake of dairy products and vegetables while underestimating cereal and meat intake compared to 7-day diet diaries, with the magnitude of error varying by sex.

If you are tracking your diet for health optimization, a food diary (recording what you eat in real-time) will give you a more accurate picture of your actual intake than trying to estimate your average habits over a year. Be aware that self-reported long-term habits often skew high for healthy foods (veg/dairy) and low for processed/meat items. For precise nutrient tracking, use a diary; for broad lifestyle categorization, an FFQ-style review is sufficient.

Mexican Americans and Mexico-born adults report significantly less long sleep (≥9 hours) compared to non-Hispanic Whites and US-born individuals, respectively.

Mexican Americans and Mexico-born adults are less likely to get long sleep (≥9 hours) than non-Hispanic Whites. This is a demographic trend, not a health recommendation. If you are in this group, focus on achieving 7-8 hours of quality sleep rather than extending it.

One night of total sleep deprivation prevents the physiological morning decrease in cerebrospinal fluid (CSF) β-amyloid 42 (Aβ42) levels observed during normal sleep in healthy middle-aged men.

Prioritize getting a full night's sleep. This study shows that missing sleep prevents your brain from clearing amyloid proteins, a key factor in Alzheimer's disease. While this study used total sleep deprivation, the mechanism suggests that even partial sleep restriction may impair this clearance process.

Upstream structural interventions targeting food pricing (taxes and subsidies) are more effective at reducing socioeconomic inequalities in healthy eating than downstream individual-level interventions.

To reduce health inequalities, policymakers should prioritize structural changes like taxes on unhealthy foods and subsidies for healthy foods over individual education campaigns, as the latter often benefit those with higher socioeconomic status more.