The MIND diet made headlines with a ~53% lower Alzheimer’s figure — then a large trial couldn’t confirm it. Both are true. Here’s what the MIND diet is, where those striking numbers came from, why the trial diverged, and what a sensible person should actually do: eat it as sound, healthy nutrition, with realistic expectations.
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.
