University of Toronto Jun 4 2026 There is a well-documented puzzle in social epidemiology: immigrants have better health than the native-born when they first arrive, but they lose this advantage at older ages. Is acculturation to blame – the process by which immigrants adopt the culture and behavior of their new country? Although this is a popular hypothesis, a new study published in the Journal of Health and Social Behavior tells a different story. If anything, acculturation appears to protect