Browse the evidence

Cinnamon supplementation significantly increases HDL-C (good cholesterol) levels in patients with Type 2 Diabetes.

Cinnamon may offer a small boost to your 'good' cholesterol (HDL). While this is a positive metabolic marker, it is not a substitute for exercise or prescribed lipid-lowering medications.

The AMPKα1 isoform plays a critical role in stimulating anabolism and regulating satellite cell dynamics during muscle regeneration, distinct from the catabolic role of AMPKα2.

Muscle repair after injury relies on specific molecular signals (AMPKα1) that are different from those that limit growth during stress. While general AMPK activation can hinder growth, the specific activation of the α1 isoform is necessary for stem cells to repair damage. This suggests that recovery protocols should support, not suppress, this specific signaling pathway.

Specific phytochemicals in broccoli (sulforaphane), dandelion (sesquiterpene glucosides), garlic (sulfur compounds), cocoa (procyanidins), olives (hydroxytyrosol/oleuropein), and grapes (polyphenols/resveratrol) provide specific health benefits including cancer prevention, cardiovascular protection, and anti-inflammatory effects.

Incorporate broccoli, dandelion (as greens), garlic, cocoa (dark), olives, and grapes into your diet to leverage their specific phytochemicals for heart and cancer health.

Higher gut microbiome diversity is associated with lower levels of very-low-density lipoprotein (VLDL) particles, serum triglycerides, and total fatty acids, and higher levels of large/high-density lipoprotein (HDL) particles.

Focus on dietary patterns that support gut microbial diversity, such as high fiber intake and fermented foods, as this state is strongly linked to healthier lipid profiles (lower triglycerides, higher protective HDL).

Specific gut microbial taxa, particularly Christensenellaceae and Ruminococcaceae, are associated with favorable lipid profiles, including lower VLDL and triglycerides and higher large HDL particles.

Dietary diversity is key. Consuming a wide variety of plant fibers supports the growth of beneficial taxa like Christensenellaceae, which are linked to better lipid management.

Daily oral administration of MK-677 (10-25 mg) to healthy elderly subjects (64-81 years) significantly increases 24-hour mean GH concentrations and serum IGF-I levels in a dose-dependent manner by enhancing the amplitude of pulsatile GH secretion without changing pulse frequency.

For healthy older adults, taking 10-25 mg of oral MK-677 daily for 2-4 weeks significantly boosts Growth Hormone and IGF-1 levels, bringing them closer to young adult ranges. This is achieved by increasing the size of natural GH pulses rather than creating constant high levels. While it may slightly raise fasting blood glucose, it was generally well-tolerated in this short-term study, offering a non-injectable alternative to GH therapy.

Short sleep duration (less than 6 hours per night) is associated with a significantly increased risk of developing obesity and weight gain in men over a 1-year period, whereas no such association was found in women.

If you are a man, getting less than 6 hours of sleep significantly increases your risk of becoming obese, even over just one year. This happens because short sleep lowers leptin (satiety hormone) and raises ghrelin (hunger hormone), driving you to eat more. Aim for 7-8 hours of sleep to protect your metabolic health. For women, the link to obesity is less clear in this study, but hormonal regulation still suggests sleep is important.

Increasing leisure time physical activity in middle-aged men (ages 50-60) reduces total mortality to the level of those with consistently high activity, but this benefit is delayed by an induction period of approximately 10 years, during which mortality risk may transiently increase.

If you are a middle-aged man who has been inactive, starting a regular high-level physical activity program (like 3+ hours/week of sports or heavy gardening) will significantly lower your long-term mortality risk, bringing it in line with those who were always active. However, do not expect immediate results; there is a 10-year window where you might not see a mortality benefit and could even face a slightly higher short-term risk. Persistence through this decade is essential to reap the longevity benefits.

Higher levels of conscientiousness are associated with greater longevity and lower all-cause mortality risk.

Focus on building self-discipline and reliability. These traits are strongly linked to living longer, partly because they help you stick to healthy habits like not smoking and eating well. You can work on these traits over time.

Direct supplementation with Urolithin A (Uro-A) bypasses gut microbiota variability to achieve significantly higher plasma concentrations than consuming ellagitannin-rich foods like pomegranate juice.

If you consume pomegranates or walnuts, your body must convert them into Urolithin A using gut bacteria. Not everyone does this efficiently. If you want guaranteed high levels of Urolithin A (e.g., for anti-inflammatory or metabolic benefits), direct Uro-A supplementation is significantly more effective than relying on food sources alone.

Current use of hormone replacement therapy (HRT) with medium potency oestrogens significantly reduces the risk of hip fracture in postmenopausal women, with risk decreasing by 6% per year of use.

If you are a postmenopausal woman concerned about hip fractures, current use of hormone replacement therapy (HRT) with medium potency oestrogens can significantly reduce your risk. The protection increases with the duration of use, decreasing by about 6% for each year you take it. However, if you stop taking HRT for more than five years, most of this protection is lost. Low doses of oestrogen alone may not be effective, so discuss the appropriate dose and regimen with your healthcare provider.

Specific probiotic strains reduce the frequency, severity, and duration of upper respiratory tract infections (URTI) in athletes, particularly under conditions of high training load or environmental stress.

If you are an athlete prone to colds, look for a probiotic with a specific strain that has been studied for immune health (e.g., Lactobacillus rhamnosus GG). Do not buy generic 'probiotic' blends without strain identification. Ensure the product lists the specific genus, species, and strain on the label.

Athletes have distinct gut microbiota compositions compared to sedentary individuals, characterized by higher diversity and abundance of health-promoting bacteria, influenced by exercise and protein intake.

Regular exercise and a diet high in protein and fiber can positively shape your gut microbiota, increasing diversity and beneficial bacteria. This is a natural way to support gut health.

A structured primary care exercise prescription program (Green Prescription) significantly increases moderate-to-vigorous physical activity levels and improves quality of life in inactive middle-aged and older women over two years, but does not significantly improve clinical biochemical markers (blood pressure, lipids, glycemic control) and is associated with a statistically significant increase in falls and injuries.

If you are a woman between 40 and 74 who isn't currently active, talk to your doctor about a 'Green Prescription.' This isn't just a piece of paper; it involves a nurse helping you set a goal of 30 minutes of brisk walking, five days a week. They will check in with you by phone and in person to keep you motivated. While this won't necessarily change your blood pressure or cholesterol numbers right away, it will likely help you feel better mentally and physically. Be aware that starting a new routine might slightly increase your risk of falls or minor injuries, so start slowly and focus on consistency.

Insulin resistance is the core metabolic abnormality in type 2 diabetes and is directly related to the risk of developing atherosclerosis and cardiovascular disease.

Insulin resistance is a primary driver of type 2 diabetes and heart disease risk. While complex tests exist, clinicians use simpler metrics like fasting insulin or HOMA to identify it. Addressing insulin resistance through lifestyle or medication is a key target for reducing cardiovascular mortality.

Daily consumption of 40g ground flaxseed significantly reduces LDL cholesterol in hypercholesterolemic adults, but this effect is transient and diminishes by 10 weeks.

Take 40g of ground flaxseed daily with a heart-healthy diet. Expect your LDL cholesterol to drop significantly within the first month, but be aware this benefit may fade after 10 weeks. Don't stop using it, as it still improves insulin sensitivity and lowers Lp(a).

Daily consumption of 40g ground flaxseed significantly reduces Lipoprotein(a) [Lp(a)] and improves insulin sensitivity (HOMA-IR) in hypercholesterolemic adults.

Incorporate 40g of ground flaxseed daily to potentially lower Lipoprotein(a) and improve insulin sensitivity. These benefits were observed at the 10-week mark, even when LDL effects had waned.

A fixed-dose Cognitive Behavioral Therapy (CBT) protocol produces similar sleep improvements for patients with primary insomnia and those with comorbid psychiatric disorders.

If you suffer from chronic insomnia, whether it stands alone or is linked to other mental health conditions, a structured 8-week CBT program is a highly effective treatment. It involves learning to control your sleep environment, restricting time in bed to match your actual sleep, and changing unhelpful beliefs about sleep. This approach works just as well for people with comorbid psychiatric issues as it does for those with primary insomnia, offering a sustainable alternative to medication.

Actigraphy provides a valid, cost-effective, and less invasive alternative to polysomnography (PSG) for estimating sleep parameters in population-based epidemiological studies, with agreement rates of 91-93% in adults.

For tracking sleep in real-world settings, use an actigraphy device (wrist-worn accelerometer). It is a validated, non-invasive, and cost-effective method to estimate sleep duration and efficiency, especially when studying large groups or long-term patterns where lab-based PSG is impossible.

Sleep scoring algorithms (e.g., Cole-Kripke, UCSD, Sadeh) convert wrist movement data into sleep/wake scores using weighted activity counts, but these algorithms can misclassify quiet wakefulness as sleep, leading to inaccurate sleep onset latency estimates.

When using actigraphy, be aware that standard algorithms may mistake quiet wakefulness for sleep, potentially underestimating how long it takes to fall asleep (Sleep Onset Latency). For more accurate SOL, consider using sleep diaries or event markers to supplement the device data.

Using sleep diaries or event markers to define Time in Bed (TIB) and Sleep Period (SLP) significantly improves the accuracy of actigraphy-derived sleep parameters compared to using algorithm-defined boundaries alone.

To get the most accurate sleep data from your actigraphy device, use the event marker button or a sleep diary to log when you get in bed, turn off the lights, and get up. This helps the device distinguish between 'time in bed' and 'actual sleep time,' correcting for errors in sleep latency and efficiency calculations.

Adherence to a Western-style diet (high in saturated fat, sugar, sodium, and red meat) significantly increases the risk of developing chronic kidney disease (CKD) and accelerates renal function decline through mechanisms involving oxidative stress, inflammation, and lipid accumulation.

To protect your kidneys, minimize intake of highly processed foods, sugary drinks, red meat, and high-sodium items. These components collectively drive inflammation and oxidative stress in the kidneys. Prioritize whole foods, plant-based proteins, and fruits/vegetables to reduce CKD risk.

High fructose consumption accelerates the development of metabolic syndrome and CKD progression by inducing oxidative stress, hyperuricemia, and inflammation, whereas glucose does not produce these specific adverse renal effects.

Limit high-fructose corn syrup and sucrose intake, especially from sugary drinks. Fructose uniquely stresses the kidneys by depleting ATP and increasing uric acid and oxidative stress. Switching to a low-fructose diet can reduce inflammation and blood pressure in CKD patients.

High intake of saturated fats and trans-fatty acids from red meat and processed foods promotes renal inflammation, oxidative stress, and lipid accumulation, contributing to CKD progression, while polyunsaturated fatty acids (PUFAs) may exert protective effects.

Reduce intake of saturated and trans-fats found in red meat and processed foods. Increase consumption of polyunsaturated fats, particularly n-3 PUFAs from fish, which are associated with a lower incidence of CKD.