Health

The Harmattan haze can become so dense in Dakar, Senegal, it dims the sun and grounds flights. Joe Penney/Reuters /Landov hide caption

Student volunteers with The Campus Kitchens Project evaluate produce. The initiative gets high-school and college students to scavenge food from cafeterias, grocery stores and farmers' markets, cook it and deliver it to organizations serving low-income people in their communities. Courtesy of DC Central Kitchen hide caption

Before and after photos of an ear shaped with the EarWell device. Courtesy of Becon Medical, Ltd. hide caption

A health worker in Liberia washes up after leaving a clinic's Ebola isolation area. Tommy Trenchard for NPR hide caption

The Affordable Care Act will take center stage at the Supreme Court on March 4. Drew Angerer/Getty Images hide caption

Physicians Nowiba Mugambi and Erica Palys discuss a patient's X-ray at the Moi Teaching and Referral Hospital in Eldoret, Kenya. The hospital plans to open a new cancer treatment center in April. Evelyn Hockstein/Courtesy of AMPATH hide caption

A government-appointed panel concluded in a recent report that Americans should eat less red meat and processed meat. A more plant-focused diet is better for health and the environment, it found. Andrew Burton/Getty Images hide caption

Closing loopholes in background checks for gun purchases would reduce the risk of death and injury, doctors' and attorneys' groups say. Alexa Miller/Getty Images hide caption

Shopping for an MRI scan? Guroo.org, won't yet show you what your local hospital or radiologist charges, but it will reveal the average cost of the test in your area. iStockphoto hide caption

An overgrowth of Clostridium difficile bacteria can inflame the colon with a life-threatening infection. Dr. David Phillips/Getty Images/Visuals Unlimited hide caption