Before the memory fades: Scientists discover a potential early warning sign of Alzheimer’s
Peer-Reviewed Publication
Updates every hour. Last Updated: 26-Oct-2026 08:16 ET (26-Oct-2026 12:16 GMT/UTC)
When most people think about Alzheimer’s disease, memory loss is usually the first thing that comes to mind. Forgetting a loved one’s name, missing appointments or repeatedly misplacing everyday items are often considered early warning signs.
But what if the disease begins affecting the brain long before memory problems become noticeable? New research from scientists at Texas A&M Health suggests that another change in brain function may appear even earlier: difficulty adapting when circumstances change.
In a recent study, researchers found that animal models with Alzheimer’s-related brain changes developed problems with cognitive flexibility months before they showed signs of memory impairment. Cognitive flexibility refers to the brain’s ability to adjust behavior, learn new rules and adapt when situations change.
Researchers at NYU College of Dentistry have uncovered what may be biologically driving oral health issues unique to Down syndrome.
Their study, published in Cell Reports, describes a molecular mechanism—a defect in calcium signaling—behind low saliva production, along with other factors that may contribute to gum disease.
Many details behind Huntington’s disease, a devastating brain disorder, have not been clearly understood. Researchers have now identified neurons involved in the disease’s progression. They used a light-based technique to activate these neurons and improve the debilitating deficits of the condition.
Researchers have revealed the structures underlying a family of debilitating genetic disorders. They discovered how genetic mutations disrupt communication links between nerves and muscles. The findings open pathways for developing customized medicines tailored to each patient’s genetic mutations.