All articles
Supplements, sleep, food, beauty, exercise. Organized through a research-anchored lens.
Does ashwagandha reduce stress?
At 300 to 600 mg of standardized extract over about 8 weeks, many trials show lower perceived stress and cortisol, but studies are small and varied. A look across 12 studies.
Is skipping breakfast unhealthy?
Observational studies show associations, but randomized trials do not confirm a causal harm. A look across both study designs.
Does coffee improve workout performance?
Around 3 to 6 mg per kg of body mass, 30 to 60 minutes before exercise. Endurance gains of roughly 2 to 7 percent are reported.
Does fish oil support heart health?
Higher doses and higher-risk groups show reductions in heart attack and coronary death, while low-dose supplements in the general population show little benefit and high doses raise the risk of atrial fibrillation.
Does hyaluronic acid hydrate skin?
Topical hyaluronic acid raises stratum-corneum hydration across multiple RCTs and meta-analyses. The main effect is surface moisture; deeper changes such as wrinkle reduction stay modest.
Is 16:8 intermittent fasting effective?
Weight tends to drop by about 1 to 4 kg, but once calories are matched the added effect of the time window is small. A look across RCTs and a large meta-analysis.
Does melatonin help sleep?
Sleep onset latency falls by around 7 minutes on average, a modest effect. It tends to help with jet lag and shifted sleep timing more than with staying asleep through the night.
Do probiotics improve gut health?
For conditions such as IBS, meta-analyses report symptom relief, but the effect is strain-dependent. For general gut health in healthy people, results are mixed.
Does protein timing after a workout matter?
When total daily protein is matched, the precise post-workout timing has little independent effect. A look across 23 controlled studies.
Does retinol reduce wrinkles?
Randomized trials report a modest improvement in fine wrinkles. The effect is smaller and more variable than prescription tretinoin and depends on formulation and concentration.
Does vitamin D support immunity?
The reduction in acute respiratory infection risk is small overall. The effect is larger in people who are severely deficient, and minimal for those who already have adequate levels.
Does zinc shorten colds?
Lozenges over 75 mg per day started within 24 hours of symptoms have shortened colds by 1 to 2 days in some trials, but variation is high and certainty is low. A look across 34 studies.
Does collagen support skin health?
Short-term RCTs report small-to-moderate improvements in hydration, elasticity and wrinkle depth. Robust long-term and durability data remain limited.
Does creatine help build strength?
Multiple meta-analyses consistently report added gains in strength and power output, especially when combined with resistance training.
Does magnesium help sleep?
People with low baseline intake tend to see improvements; those already at adequate levels see little additional effect. A look across 44 studies.