Browse the evidence

Processed meat consumption is associated with increased mortality from cardiovascular diseases and cancer.

Limiting processed meat intake can reduce the risk of dying from cardiovascular diseases and cancer. Aim for less than 20 grams per day.

High intake of milk and dairy products (200-300 ml/day) is associated with a reduced risk of stroke and does not increase the risk of cardiovascular disease, contrary to the belief that saturated fat in dairy increases CVD risk.

You can include 200-300 ml of milk or equivalent dairy (like cheese) in your daily diet without increasing your risk of heart disease. In fact, it may lower your risk of stroke. Focus on low-fat options if you are managing blood pressure, but do not avoid dairy due to fear of saturated fat causing heart attacks.

Soleus muscle is more susceptible to atrophy and fiber type shifting than the gastrocnemius during long-duration spaceflight, exhibiting a 15% volume loss and a 17% decrease in MHC I fibers.

Postural muscles like the soleus (calf) are highly sensitive to unloading. If you are immobilized or bedridden, expect significant loss of postural endurance and calf strength. Rehabilitation should prioritize specific loading of these slow-twitch dominant muscles.

Improving diet quality over 12 years is associated with a reduced risk of cardiovascular disease mortality, but not necessarily cancer mortality, depending on the dietary index used.

Improving your diet quality can reduce your risk of dying from cardiovascular disease, especially if you follow patterns like the Alternate Healthy Eating Index or Mediterranean Diet. While the link to cancer mortality is less clear across all dietary patterns, focusing on overall diet quality is still beneficial.

Both short sleep (<7 hours) and long sleep (>8 hours) are associated with a significantly increased risk of all-cause mortality in a U-shaped pattern, with the strongest effects observed in young men.

Aim for 7-8 hours of sleep per night. Both sleeping less than 7 hours and more than 8 hours is linked to higher mortality risk, especially in younger men. While sleep quality itself may not be an independent risk factor after adjusting for lifestyle, maintaining a consistent and adequate sleep duration is a critical health lever.

Higher muscular strength is independently associated with reduced all-cause and cancer mortality in middle-aged men, and reduces all-cause mortality in men with hypertension and heart failure patients, even after adjusting for cardiorespiratory fitness.

Prioritize building muscular strength through resistance training. It is not just about looks; higher strength levels are strongly linked to living longer and reducing the risk of heart disease and cancer, independent of how much you exercise aerobically. Aim for progressive overload in major muscle groups.

Urbanization and the associated nutrition transition in Sub-Saharan Africa, characterized by increased availability and consumption of energy-dense foods (high fat, sugar, and animal protein) and decreased physical activity, is a primary driver of rising obesity and non-communicable disease rates.

In urbanizing Sub-Saharan African contexts, obesity is driven by structural shifts: increased availability of cheap, energy-dense processed foods (high fat/sugar) and reduced physical activity due to urban lifestyles. Interventions must address food environment and urban planning, not just individual diet advice.

Higher serum levels of interleukin-6 (IL-6) and C-reactive protein (CRP) are significantly associated with increased mortality risk and poorer physical and cognitive performance in elderly individuals, including those classified as 'successfully aging'.

Monitor inflammatory markers like IL-6 and CRP as part of a comprehensive geriatric assessment. While these are predictive, they reflect underlying 'inflammaging.' Focus on modifiable drivers of inflammation such as maintaining a healthy weight (avoiding both underweight and obesity), managing cardiovascular risk factors, and ensuring adequate nutrition, as these are linked to lower inflammatory burden and better functional outcomes in aging.

Regular exercise acts as a pharmacological agent that promotes health and longevity, but its efficacy and safety depend strictly on proper dosing (volume, intensity, frequency) and individual patient status.

Treat exercise like a prescription drug: consistency and correct dosage matter more than intensity. Aim for at least 150 minutes of moderate activity or 75 minutes of vigorous activity per week. If you are sedentary, start with a lower dose (e.g., 15 minutes daily) and gradually increase. Avoid extreme exhaustion if you are untrained, and do not rely on antioxidant supplements to enhance exercise benefits, as they may block the body's natural adaptation mechanisms.

High percentage of body fat and high BMI (≥30 for women, ≥35 for men) are associated with approximately double the likelihood of mobility-related functional limitations in adults aged 70 and older.

If you are over 70, maintaining a healthy body fat percentage and BMI is crucial for staying mobile. This study found that high body fat and high BMI significantly increase the risk of mobility issues, while low muscle mass alone did not show the same strong link. Focus on managing body composition through physical activity and diet rather than just trying to build muscle mass.

Myosteatosis (intramuscular adipose tissue accumulation) is a consistent marker of aging that negatively correlates with muscle strength, mobility, and insulin sensitivity, independent of total muscle mass.

For older adults, maintaining muscle strength and mobility requires attention to muscle quality, not just size. Regular physical activity can prevent the age-associated increase in intramuscular fat (myosteatosis), which is a key driver of mobility disability and insulin resistance, even if muscle mass remains stable.

High levels of myosteatosis are associated with increased mortality and poor survival outcomes in cancer survivors, particularly those with low muscle mass.

For cancer survivors, assessing muscle quality (via imaging like CT scans) is important for predicting survival. High levels of fat infiltration in muscles (myosteatosis) are linked to higher mortality, especially when combined with low muscle mass.

Berberine improves endothelial function and reduces oxidative stress in human subjects.

In healthy humans, berberine supplementation (1.2 g/day) has been shown to improve blood vessel function and reduce oxidative stress. This suggests potential benefits for long-term cardiovascular health, even in the absence of diagnosed disease.

Greater day-to-day intraindividual variability (IIV) in sleep/wake patterns (timing, duration, quality) is consistently associated with poorer physical and mental health outcomes, including higher BMI, obesity, chronic disease, depression, and stress, independent of mean sleep values.

Stop focusing solely on hitting a specific number of hours. Track your sleep consistency. High day-to-day variability in when you sleep and wake is a strong predictor of health issues like obesity, depression, and chronic disease. Aim for regularity in bedtime and wake time, not just total hours.

Sleep interventions, particularly Cognitive Behavioral Therapy for Insomnia (CBT-I), reduce sleep/wake intraindividual variability (IIV), suggesting that stabilizing sleep patterns is a key mechanism of these treatments.

If you are treating insomnia, expect that your sleep will become more consistent, not just longer. Treatments like CBT-I work by stabilizing your sleep schedule, reducing the day-to-day chaos of your sleep patterns.

Younger age is consistently associated with greater variability in sleep timing (bedtime and wake time), while older age is associated with less variable sleep patterns.

Young adults naturally have more erratic sleep schedules. This is normal but carries health risks. As you age, your sleep tends to stabilize. If you are young, be aware that your erratic sleep may be harming your health more than you think.

A higher sodium-potassium ratio is significantly associated with increased risk of all-cause, cardiovascular, and ischemic heart disease mortality in US adults.

To lower your risk of death from heart disease, focus on your sodium-to-potassium ratio, not just sodium. Reduce processed foods (high sodium) and increase fruits, vegetables, and dairy (high potassium). This balance is more critical than sodium reduction alone.

Inulin supplementation promotes a bifidogenic effect (increased Bifidobacterium) and alters gut bacterial composition at the class and order levels, whereas IPE primarily affects bacterial populations at the species level.

If you take inulin, expect it to boost Bifidobacteria and change the broad structure of your gut bacteria. If you take IPE, expect it to shift specific species of Bacteroides without boosting Bifidobacteria as much, likely due to the high propionate levels inhibiting that specific growth. Both interventions alter the microbiome, but in distinct ways.

A 4-week multimodal prehabilitation program (high-intensity exercise, nutritional support, psychological support, and smoking cessation) significantly reduces severe and medical postoperative complications in patients undergoing elective colorectal cancer surgery.

If you are having colorectal cancer surgery, ask your care team about a prehabilitation program. It typically involves 4 weeks of supervised exercise, nutritional support, and stress management before surgery. This can significantly lower your risk of serious complications and help you recover faster.

Exercise improves mitochondrial function and muscle mass maintenance by activating mitochondrial biogenesis and mitophagy, counteracting catabolic signaling pathways triggered by dysfunctional mitochondria.

To maintain muscle mass, especially as you age or if you have chronic conditions, regular exercise is essential. It works by cleaning out damaged mitochondria (mitophagy) and building new, efficient ones (biogenesis). This process prevents the cellular signals that cause muscle wasting. Focus on consistent physical activity rather than complex supplements.

Consumption of mung bean (Vigna radiata L.) and its bioactive compounds (polyphenols, polysaccharides, peptides) ameliorates metabolic syndrome markers, including hyperglycemia, hyperlipidemia, and hypertension, through mechanisms involving enzyme inhibition (alpha-glucosidase, ACE) and antioxidant activity.

Incorporate mung beans, particularly sprouted or fermented varieties, into your diet to help manage blood sugar and blood pressure. The seed coat contains high levels of flavonoids like vitexin and isovitexin, which contribute to these benefits. While whole bean consumption is beneficial, specific extracts or processed forms (sprouted/fermented) may offer higher concentrations of active compounds.

Waist circumference (WC) is a stronger indicator of hypertension and diabetes risk compared to BMI or waist-to-hip ratio (WHR), especially in adults aged 60 and older.

For Chinese adults, especially those over 60, waist circumference is a better indicator of diabetes and hypertension risk than BMI. Consider using waist circumference alongside BMI for a more accurate health assessment.

Chronotype significantly modulates sleep duration, social jet lag, and sleep disturbance in shift-workers, with early chronotypes suffering worse outcomes on night shifts and late chronotypes suffering worse outcomes on morning shifts.

If you work rotating shifts, your natural sleep preference (early bird vs. night owl) determines which shifts are hardest on you. Early birds struggle most with night shifts, while night owls struggle most with morning shifts. To minimize sleep loss and jet lag, employers should consider assigning shifts that align with an employee's chronotype, or at least be aware that mismatched shifts will cause significant sleep debt regardless of the employee's effort.

Gut microbiota composition serves as a predictive biomarker for obesity-related metabolic abnormalities, with specific genera (Bacteroides, Parabacteroides, Blautia, Alistipes, Romboutsia, Roseburia) consistently associated with metabolic health status in obese populations.

Your gut bacteria composition is a strong indicator of your metabolic health risk. If you are obese, specific bacteria levels (like Bacteroides and Roseburia) can predict issues like high blood pressure or lipids. While this paper doesn't prescribe a specific diet, it suggests that interventions targeting these specific microbes (e.g., through prebiotics or probiotics) could help improve metabolic risk. Focus on dietary patterns that support a diverse microbiome, as specific genera are linked to better metabolic outcomes.