Can You Actually Lower Your Alzheimer's Risk?
The most evidence-backed brain-health move is to act before the science can hand you certainty. Randomized trials show that structured programs combining diet, exercise, cognitive challenge, and blood-pressure and other blood-vessel risk management can improve cognitive test scores in older adults at elevated risk. Risk calculators and biomarkers, measurable signs of disease biology in blood, spinal fluid, or scans, are improving risk stratification, but they still cannot tell a healthy person that dementia is inevitable or prove which prevention step will work for that individual. So the smartest move is to invest early in the low-regret risks you can actually change.