Dr. Bill Mahon says a gorgeous coast and the chance to practice a more personal style of community medicine lured him to remote Fort Bragg, Calif., 35 years ago. Farida Jhabvala Romero/KQED hide caption

toggle caption Farida Jhabvala Romero/KQED

The ParaGuard IUD, which releases copper into the uterine cavity, can last up to 10 years. In clinical studies, the pregnancy rate among women using the device was less than 1 pregnancy per 100 women annually. Mark Harmel/Science Source hide caption

toggle caption Mark Harmel/Science Source