Health care delivery is expected to change, with more care provided by nurse practitioners and fewer people having a doctor for life. Images.com/Corbis hide caption

itoggle caption Images.com/Corbis

U.S. House Majority Leader Rep. Eric Cantor (center) and colleagues gather before a Sunday vote on Capitol Hill. The House passed two new provisions to a federal spending bill to delay Obamacare for a year and to repeal the medical device tax. Alex Wong/Getty Images hide caption

itoggle caption Alex Wong/Getty Images

A student gets vaccinated against pertussis at a Los Angeles middle school in 2012. The state required that students be immunized to halt an epidemic of whooping cough. Kevork Djansezian/Getty Images hide caption

itoggle caption Kevork Djansezian/Getty Images

The audience concentrates on a presentation by Kansas Insurance Commissioner Sandy Praeger's office about the federal health care overhaul at the University of Kansas satellite campus in Overland Park, Kan., earlier this month. John Hanna/AP hide caption

itoggle caption John Hanna/AP

Kombucha made by artisan tea brewer Bill Bond in Akron, Ohio, comes in an array of flavors, such as lemongrass, ginger, blueberry and watermelon. Peggy Turbett/The Plain Dealer /Landov hide caption

itoggle caption Peggy Turbett/The Plain Dealer /Landov

A broken hip like the one at left is a big health worry for older women. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Texas Sen. Ted Cruz leaves the weekly Senate Republican Policy Committee luncheon Tuesday, shortly before beginning a filibuster against Obamacare. Alex Wong/Getty Images hide caption

itoggle caption Alex Wong/Getty Images

CPAP masks have become much more comfortable than in years past, doctors say. But most of the time, they're probably not the first thing to try for sleep apnea. iStockphoto.com hide caption

itoggle caption iStockphoto.com

That's how it's supposed to work. But for most new moms, breast-feeding doesn't come easily, a study finds. iStockphoto.com hide caption

itoggle caption iStockphoto.com