; and economic stability. The following examples illustrate the nexus between the unequal distribution of the social determinants of health and health disparities: (A) The built environment influences residents’ level of physical activity. Neighborhoods with high levels of poverty are significantly less likely to have places where children can be physically active, such as parks, green spaces, and bike paths and lanes. Neighborhoods and communities can provide opportunities for physical activity and support active lifestyles through accessible and safe parks and open spaces and through land use policy, zoning, and healthy community design. (B) Emotional and physical health and well-being are directly impacted by perceived levels of safety, such as unlit streets at night. Community members have expressed that safety is not only a barrier to accessing programs and services that increase quality of life but they are also not able to access physical activity in their community through the built environment. (C) In many workplace environments, toxic chemicals have lasting detrimental effects on employees’ health. The hazardous compounds found in most nail salon products affect the respiratory system, reproductive system, and central nervous system, and also cause kidney and liver damage. Recognizing the importance of addressing occupational hazards as a matter of public health, especially for Asian-American women who constitute 40 percent of nail salon technicians—with Vietnamese-American women accounting for 37 percent of this—the White House Initiative on Asian American Pacific Islanders has created an interagency working group to coordinate efforts by the Environmental Protection Agency, Occupational and Safety Health Administration, Food and Drug Administration, and other Federal agencies to create programming, draft regulations, and conduct more outreach on educating workers on health and safety issues. (D) Historical and institutional discrimination against certain racial groups in the United States has shaped