She trained as a postdoctoral fellow at Harvard Medical School in the Division on Aging and Department of Social Medicine.

[4] She has examined this in a series of innovative studies that demonstrate culture-based positive and negative age stereotypes of older persons have beneficial and detrimental influences, respectively, on a wide range of health conditions.

[25][26] Levy's research findings about the impact of age stereotypes on older persons' health have been reproduced by scientists in five continents and supported by numerous meta-analyses.

[27][28][29][30][31] Her ground-breaking studies utilize a variety of complementary methodologies, including experimental,[9] longitudinal,[10] and cross-cultural approaches.

[37] The American Psychological Association advocated a historic resolution against ageism that used her research as an evidence base, citing 11 of her studies.

[24] The practical applications of Levy's research have extended beyond the U.S. For instance, her findings provided the rationale for a World Health Organization Campaign to End Ageism, supported by 194 countries, in which she is a scientific advisor.