Eye Exams Detect Alzheimer's Disease Years Before Symptoms Appear

More than 7 million Americans live with Alzheimer's today, and researchers project that number will rise to 13 million by 2050, doubling the burden on families Researchers at the Jackson Laboratory (JAX) discovered twisted, narrowed retinal vessels in mice carrying a common gene mutation, showing changes that resemble early Alzheimer's signs years before memory decline begins They also found disrupted protein activity in both brain and retina, weakening energy production and vessel support, creating the conditions for Alzheimer's long before symptoms appear Visual sensitivity testing in over 8,000 adults predicted dementia risk up to 12 years ahead, showing how everyday vision struggles may signal hidden brain changes Regular eye exams, better sleep, balanced carbohydrates, healthy fats, sunlight exposure, and methylene blue support offer practical steps to strengthen vessel health and protect your brain