
By Joyce Siette
For years, scientists have known that moving our bodies can sharpen our minds. Physical activity boosts blood flow to the brain, enhances neuroplasticity and reduces chronic inflammation. These processes are believed to protect against cognitive decline, including dementia.
Yet despite decades of research, major questions have remained unresolved.
Does exercising at any age help reduce your risk of dementia? Or only when you’re young? And what if






