The exact cause of Alzheimer's has long eluded scientists - with experts suggesting multiple factors, like genetics, environment, and lifestyle, may contribute. 

Of course, we know that good sleep, exercise, a heart-healthy diet, and social engagement can lower the risk, no one knows why some develop the disease and others don't. New research proposes that a single cause could be behind the disease.

This theory challenges current beliefs but understanding the root cause could aid in prevention, diagnosis, and treatment. The study suggests "stress granules" could be key. These protein-RNA clumps form when a cell experiences stress, temporarily halting normal functions. In Alzheimer’s patients, these granules don't dissolve, disrupting vital processes and leading to markers like inflammation.

Stress granules are created by biological stress, not emotional stress, and are triggered by factors like toxins, injury, or illness. 

While the link between cell stress and Alzheimer’s is still being explored - it’s clear that understanding early cellular stress could lead to better treatments for the disease!