Are immigrants healthier than native residents?

Immigrants tend to be healthier than native residents when they arrive—an advantage that dissipates with time

Bar-Ilan University, Israel, and IZA, Germany

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Elevator pitch

In common anti-immigrant rhetoric, concerns are raised that immigrants bring diseases with them to the host country that threaten the health of the resident population. In reality, extensive empirical research over several decades and across multiple regions and host countries has documented that when immigrants arrive in the host country they are healthier than native residents, a phenomenon termed the “healthy immigrant effect.” This initial advantage deteriorates with time spent in the host country, however, and immigrants’ health status converges toward (or below) that of native residents.

Immigrants’ self-assessed health status is
                        better than that of natives initially

Key findings


On arrival, immigrants are healthier than native residents (the “healthy immigrant effect”).

New immigrants bring healthier habits and lifestyles, such as physical activity, low-calorie diets, close family ties, and protective cultural factors.

Immigration serves as an experimental framework for testing the effects of environmental factors on diseases and on ethnic health disparities.

Good health affects all spheres of life, including labor market performance.


Immigrants’ initial health advantage deteriorates with time in the host country and converges toward (or below) the health status of native residents.

Disparities between immigrant and native residents may differ across dimensions of health and health metrics and by gender and country of origin and residence.

Immigrants’ self-reports of health conditions may under-report their true health status.

Statistical analyses may be biased downward because they fail to consider sick immigrants who return to their country of origin.

Author's main message

The health status of the host country benefits from immigration, because new immigrants tend to be healthier than native residents and to have healthier habits and lifestyles. Later, as immigrants adjust to the lifestyles and norms of the host country, their health deteriorates. Self-assessed health appears to be an adequate measure for evaluating health status disparities between immigrant and native residents. Because good health affects all spheres of life, including labor market performance, governments should support additional health-care services for immigrants and make health systems more responsive to their needs. The negative effects of immigrant acculturation can be diminished through preventive health practices that can also reduce health-care expenditures.

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