Poor sleep is the most reliably documented impairment to cognitive performance available — and the most commonly ignored one. This guide covers the evidence-ranked sequence for tonight: environmental interventions first (largest, fastest, free), timing changes second, then supplementation — Magnesium Glycinate, Glycine, L-Theanine, and the pre-formulated Performance Lab Sleep option — all within the NeuroEdge 90-60-30 wind-down protocol.
Most citicoline vs alpha-GPC comparisons miss the point. These compounds work through fundamentally different pathways, serve different purposes, and come with a genuinely different safety profile. Here is what 18 years of research and personal testing actually tells you about choosing between them
Chronic neuroinflammation — mediated by NF-κB activation and microglial overactivation — is a primary driver of Alzheimer’s pathology, cognitive ageing, and depression. Diet directly regulates these inflammatory pathways. The MIND diet reduced Alzheimer’s risk by 58% in the Morris 2015 study. Extra-virgin olive oil’s oleocanthal inhibits COX-1 and COX-2 via the same mechanism as ibuprofen. The gut-brain axis — through microbiome dysbiosis and intestinal permeability — delivers systemic inflammation to the brain. Understanding the mechanisms makes dietary choices more specific and evidence-based than any superfood list.
Cognitive decline is not inevitable. 70% of cognitive ageing is modifiable — not genetic. Four mechanisms drive decline: amyloid accumulation (addressed by N3 sleep for glymphatic clearance), neuroinflammation (Mediterranean diet and DHA), vascular damage (aerobic exercise and blood pressure control), and synaptic reserve depletion (language learning, musical training, cognitive challenge). Prevention must begin in midlife — amyloid accumulation starts 15-20 years before symptoms. The evidence is specific enough to match interventions to mechanisms.
Cognitive decline is not inevitable — it is the cumulative result of modifiable neurobiological mechanisms applied over decades. The complete neuroscience of neuroinflammation, amyloid-beta accumulation, hippocampal neurogenesis, and synaptic density — and the evidence-based protocol for protecting and enhancing brain function across a lifetime.
The sleep supplement market is saturated with plausible-sounding products and inconsistent evidence. This guide applies the same rigorous evidence-quality framework to sleep supplements that NeuroEdge applies to cognitive compounds: human RCTs with specific sleep outcomes, mechanistic coherence, and honest caveats. Tier 1 (Magnesium Glycinate and Glycine — both with direct RCT evidence), Tier 2 (L-Theanine, Ashwagandha KSM-66, Magtein®), and what doesn’t make the list (Valerian, 5-HTP, CBD) — with the reasoning for each exclusion.
Creatine is the most thoroughly researched supplement in human history and the most overlooked compound in cognitive enhancement. Working memory improvements confirmed in multiple RCTs. Sleep deprivation cognitive protection confirmed with brain imaging (2024). 30+ years of safety data with no serious adverse effects. Cost: approximately 20–40p per day. This complete guide covers the mechanism, the benchmark trials, why vegetarians show the largest effects, and the Creapure® quality standard that matters.
DHA is referenced in every other article in this series as the structural foundation that makes everything else work better. After 18+ years of research and the MIDAS trial reversing three years of memory decline in 24 weeks, here is the complete evidence-based guide to the one compound that is not optional for any serious cognitive enhancement protocol.
