Helping others linked to slower cognitive decline among people at higher genetic risk for Alzheimer’s
Peer-Reviewed Publication
Updates every hour. Last Updated: 23-Oct-2026 18:16 ET (23-Oct-2026 22:16 GMT/UTC)
Regularly volunteering or informally helping people outside one’s home may buffer against accelerated decline in memory and thinking for people with a major genetic risk factor for Alzheimer’s disease. The association was strongest among people at the highest genetic risk for Alzheimer’s.
Long-term tracking of nearly 160,000 people from across the United States suggests that brain cancer risk rises as exposure to radon increases.