First-year medical student Michelle Gentile assists her classmate Abbie Harts as she performs a pelvic exam on a volunteer at Northwestern University. Joshua Lott/Reuters /Landov hide caption

itoggle caption Joshua Lott/Reuters /Landov

Customers enter a Hobby Lobby store in Antioch, Calif., this past spring. The Supreme Court is ruling on the crafts store chain's resistance to portions of the Affordable Care Act. The store's owners cite their religious freedom. Justin Sullivan/Getty Images hide caption

itoggle caption Justin Sullivan/Getty Images

Portugal's Cristiano Ronaldo takes a water break during the 2014 World Cup soccer match between Portugal and the U.S. in Manaus, Brazil, on June 22. Siphiwe Sibeko/Reuters/Landov hide caption

itoggle caption Siphiwe Sibeko/Reuters/Landov

Michael Yezzi raises 1,000 pigs a year in Shushan, N.Y. He's worried about how to keep his farm safe from a disease that has no proven cure. Abbie Fentress Swanson for NPR hide caption

itoggle caption Abbie Fentress Swanson for NPR