Mar 29, 2026Mental HealthPurple Perilla for Memory: What the First RCT ShowsCan purple perilla extract improve memory? The first placebo-controlled trial found a positive signal, but missing effect sizes and zero replication limit it.purple perillacognitive impairmentneuroprotectionbdnfRead article →
Mar 22, 2026Mental HealthDo Lower fNIRS Brain Signals Predict Better Focus?Two botanical trials lowered prefrontal oxyhemoglobin on fNIRS, but only one improved working memory. Why the biomarker cannot yet sell a nootropic.nootropicsbacopa monnieriworking memoryfnirsRead article →
Mar 9, 2026Mental HealthL-Theanine and Caffeine for Focus: What the Evidence ShowsL-theanine plus caffeine can improve attention and reaction time, especially under sleep loss. Here's what human trials support—and what they don't.l-theaninecaffeinesleep deprivationattentionRead article →
Mar 9, 2026NutritionTaurine and Energy Drinks: Does It Actually Improve Focus?Do taurine energy drinks improve focus? The evidence points to caffeine as the main driver, while taurine's added cognitive value remains unproven.taurinecaffeinenootropicscognitive enhancementRead article →