Focused on reducing health inequities among African American men by examining how racism and masculinity norms impede help-seeking.

Helped develop mRNA COVID-19 vaccines and worked to build vaccine trust in Black communities.

Studied racial and immigrant-status inequities in maternal and infant health, especially affecting Black and immigrant mothers.

Increased neuroscience research inclusivity and highlighted exclusion of African-ancestry data in mental-health studies.

Worked to uncover and reduce racial and ethnic disparities in healthcare quality and outcomes, particularly among Black versus White patients.

Championed eliminating racial health disparities, especially infant mortality, HIV/AIDS, and care for minorities.