care. Sildenafil and riluzole may offer new ways to protect nerve cells and slow decline. Because all three drugs already exist, they could reach the public far faster and at lower cost than new experimental therapies, making advanced care more accessible to people around the world.

meaningful trajectory for progress much faster than relying solely on new agents. If confirmed in trials, these three medicines could change how Alzheimer’s is prevented and treated. A simple shingles vaccine could lower dementia risk for millions of older adults and reduce the global burden of

(non)-treatment of large groups of people online. Researchers caution that these three medications should not be routinely prescribed for the purpose of treatment. Regardless, the work shows genuine momentum and lays out a clearer path into a future for larger clinical trials that may provide a