Brain & Cognitive Function
27 articles across 27 supplements
The Clock vs. The Speedometer: Why Biological Age Measurement Has Two Fundamentally Different Jobs
Understanding the difference between where you are in aging and how fast you're aging
The Four Blood Signals That Predict Brain Aging — And Why Most Doctors Don't Test Them
How neurotrophins, plasmalogen lipids, inflammatory cytokines, and metabolic markers reveal brain health years before sy...
The Cortisol Switch: How the MR/GR Receptor Balance Determines Whether Stress Makes You Stronger or Breaks You Down
Why identical stressors destroy some people and strengthen others
The Autonomic Switch: Why Your HRV During Sleep Reveals What Your Sleep Tracker Can't
How Heart Rate Variability Exposes the Hidden Battle Between Your Sympathetic and Parasympathetic Nervous Systems
The Biomarker Cascade: How Your Heart Sends Distress Signals in a Specific Order — And Why Most People Only Get Tested When It's Almost Too Late
Understanding the sequential progression from endothelial dysfunction to structural damage reveals which biomarkers to t...
The Cognitive Reserve Buffer: Why Two People With Identical Brain Scans Can Have Completely Different Mental Performance
How the brain's hidden resilience mechanism determines whether pathology translates into cognitive decline
Why Vinpocetine Works for Some Brains and Not Others: The Blood Flow Variable Nobody Talks About
Your B-Complex Lowers Homocysteine—But That May Not Be Enough to Protect Your Heart or Brain
EPA vs DHA: The Ratio in Your Fish Oil Capsule Changes Everything — And Most People Are Taking the Wrong One
The overlooked EPA:DHA ratio in omega-3 supplements is the hidden lever behind inflammation, mood, and cholesterol outco...
Your Lactobacillus Strain Is the Variable: Why Most Probiotic Research Misses the Point
Network meta-analyses reveal only certain Lactobacillus strain combinations actually move the needle—are you taking the...
Phosphatidylserine Raised Acetylcholine in 12 Months — But Memory Improved While Cortisol Results Were All Over the Map
New research reveals why PS supplements work for some people but not others
Alpha-GPC's Hidden Trade-Off: The Stroke Risk Signal That Changes How You Should Take It
A 10-year cardiovascular risk finding creates tension with proven cognitive benefits — demanding personalized monitoring...
Citicoline Works for Stroke and Glaucoma — But Your Brain May Be a Different Story
Why citicoline's dramatic neuroprotection in brain injury doesn't translate to healthy brains—and how to know if you're...
NAC's Mechanism Is Not What You Think: Why 'Antioxidant' Is the Wrong Label
How Cysteine, Glutathione, and Your Biology Decide If NAC Does Anything for You
Bacopa Takes 12 Weeks to Work — But Most People Quit in 4
Why timing and baseline cognitive tracking determine whether this nootropic actually works for you
GABA Supplements Can't Cross the Blood-Brain Barrier — So Why Do Some People Swear By Them?
The surprising peripheral mechanisms that explain why oral GABA works for some but not others
Why L-Theanine's Sleep Research Took 20 Years to Produce a Meta-Analysis — And What It Finally Shows
New evidence reveals the amino acid works best for anxious sleepers, not everyone
Why Your Iron Supplement Dose May Not Matter—But Your Hepcidin Level Does
How your body's iron gatekeeper determines whether any dose works at all
Lion's Mane Has a Dirty Secret: The Compounds That Make It Work Barely Survive Your Gut
Why the bioactive molecules in your Lion's Mane supplement may never reach your brain
Your Genetics Determine Whether Creatine Works for You — And Science Is Just Starting to Figure Out Why
New research reveals why 30% of people see zero muscle gains from creatine supplementation
Ashwagandha's Cortisol Effect Ranges from 0% to 67%: What Determines If You're a Responder
Recent studies reveal why this adaptogen works dramatically for some people but shows zero effect in others
Your Omega-3 Supplement Is Probably Doing Nothing — Unless You Know Your Omega-3 Index
Why measuring tissue levels matters more than dosage
What the Curcumin Evidence Actually Measures — and Which Populations It Applies To
Most curcumin research enrolled people with metabolic dysfunction, not healthy adults seeking optimization
The omega-3 index as a status marker: what the proven blood response tells you that dose labels cannot
Why identical fish oil doses produce dramatically different blood levels—and why measuring your omega-3 index matters mo...
mTOR: The Cell's Master Switch Between Growth and Survival
How cells decide whether to build new proteins or recycle old parts
How Insulin Signaling Works: The Two-Fork Pathway That Controls Both Metabolism and Cell Growth
One receptor, two major cascades, and a critical branch point that shapes health and disease