
Science Simplified
Science Simplified: The Company We Keep
A major analysis of more than 600,000 people found that loneliness was linked to a 31% higher risk of dementia. Inside that number is some good news: connection is one of the few risk factors families can actually influence. Here's what the research shows, why feeling connected matters more than simply having company, and the small, steady habits that help.
October 27, 2026






