The ethnic density hypothesis attributes mental health benefits to what mechanism?

• A. Social support and buffers from community networks
• B. Genetic adaptation within neighborhoods
• C. Higher income
• D. Increased acculturation stress

Answer: (B)

Living in a neighborhood with a high concentration of people from the same ethnicity provides mental health benefits mainly through social support and buffers from community networks. When many residents share your background, you’re more likely to have robust social ties, practical help, and culturally familiar resources. This network of relationships offers emotional support, reduces isolation, and helps you cope with stressors like discrimination or the pressures of adapting to a new culture. All of this lowers vulnerability to mood and anxiety problems.

Genetic adaptation within neighborhoods isn’t a plausible mechanism for short-term mental-health benefits, as genetic change across neighborhoods isn’t something that occurs on relevant time scales. While SES and income can influence mental health, they aren’t the mechanism highlighted by ethnic density. Increased acculturation stress would worsen distress, not explain protective effects; in dense ethnically homogenous settings, acculturation stress is often attenuated rather than amplified.