大跌眼镜：外向积极参与社会活动的人老年痴呆基因更多

https://neurosciencenews.com/alzheimers-social-behavior-29291/

Contrary to popular belief, a new study suggests that people with a higher genetic risk for Alzheimer’s may become more socially engaged—not less. Researchers analyzed data from over 500,000 individuals and found that higher-risk participants reported lower social isolation and more positive family interactions.