Ann Hennigan is a freelance writer and editor in Northern Virginia. In addition to articles for print and web, her experience includes researching, writing, and editing medical/scientific publications and nonfiction and fiction book manuscripts. She has worked on projects for government and private-sector clients ranging from New York Times best-selling authors to the U.S. Marine Corps, the Defense Health Agency, and the National Institutes of Health. She can be reached at ann.hennigan@gmail.com.