All Cognitive Clarity Articles
16 articles · Updated regularly
The Sleep–Memory Connection: What Happens to Your Brain When You Don't Get Enough Rest
Chronic sleep disruption after 45 accelerates cognitive decline at a rate most people simply don't expect — and the mechanism is now well understood.
Omega-3 Fatty Acids and Brain Health: The Definitive Guide for Over-45s
DHA and EPA play critical roles in preserving myelin and reducing neuroinflammation. Here's the optimal protocol — and what the research actually shows.
Stress, Cortisol, and Your Brain: The Hidden Driver of Cognitive Aging
Chronically elevated cortisol shrinks the hippocampus — the memory centre of the brain. Understanding this connection is the first step to protecting it.
The Brain-Body Connection: How Physical Exercise Protects Memory
Exercise stimulates BDNF — brain-derived neurotrophic factor — a protein that acts like fertiliser for neurons. Here's what type and how much the evidence supports.
Nutrition for the Aging Brain: A Practical Dietary Protocol
The MIND diet, Mediterranean eating, and the specific foods with the strongest evidence for protecting cognitive function after 45. A practical, evidence-ranked guide.