General-practice doctors and a neurologist said such mental deterioration was typical for a person with Down syndrome entering adulthood, recalled her mother, Marilyn Lesmeister. They said nothing ...

Alzheimer's disease poses a major threat to people with Down syndrome. Many develop the disease in their 40s and 50s, and most will get it if they live long enough. People with Down syndrome may ...

People with Down syndrome helped scientists pave the way for Alzheimer’s drugs but are now left out of the treatment. The clinical trials for new Alzheimer’s disease treatment drugs — which ...