A cross-section of skeletal muscle in this light micrograph shows the individual, parallel muscle fibers (red). These fibers work in concert to power movement. Thomas Deerinck, NCMIR/ScienceSource hide caption
Health Health
Health
Wednesday
Oklahoma Gov. Mary Fallin issues a statement to the media after the execution of Clayton Lockett. Oklahoma Secretary of Safety and Security Michael C. Thompson stands behind her at the Oklahoma State Capitol in Oklahoma City. Alonzo Adams/AP hide caption
Women who had chemotherapy were more likely to lose their jobs, a survey finds. Amelie Benoit/BSIP/Corbis hide caption
Need a hand with those dishes? iStockphoto hide caption
President Obama said eight million people signed up for health coverage through new insurance exchanges. J. Scott Applewhite/AP hide caption
Loved ones express their grief at the burial of Ramon Romero Ramirez in Chichigalpa, Nicaragua, January 2013. The 36-year-old died of chronic kidney disease after working in the sugar cane fields for 12 years. Ramirez is part of a steady procession of deaths among cane workers. Ed Kashi/VII hide caption
Tuesday
Mike Smith, of Long Beach, Calif., now pays $200 for his family's health insurance policy, compared with the $3,000 a month he would have had to pay on the individual market last year. Stephanie O'Neill for NPR hide caption
Even before you were a twinkle in your mom's eye, what she ate — and didn't eat enough of — may have helped shape you. George Marks/Getty Images hide caption
There's a lot more going on in our guts than just digestion. Andreas Lindlahr/iStockphoto hide caption
Tornadoes killed at least 17 people on Sunday and Monday. But some managed to stay safe in underground shelters like the one at right in Vilonia, Ark. Karen E. Segrave/AP hide caption
Insurance plans that only cover catastrophic costs don't pencil out for most people, an architect of the Affordable Care Act says. iStockphoto hide caption
Monday
It's not clear why children, teenagers and young adults would be at greater risk of suicide when they start taking antidepressants. iStockphoto hide caption
For now, Pfizer's world headquarters remains in New York. But a deal for AstraZeneca could turn Pfizer British. Mark Lennihan/AP hide caption
Sulfur-rich foods, such as cabbage, bok choy and kale, can be popular with gut bacteria. And we all know how much the critters enjoy beans. Meg Vogel/NPR hide caption
Kelly Koshuta, a basketball star at James Madison High School, Vienna, Va., had surgery to repair an anterior cruciate ligament injured in 2012. Sarah L. Voisin/The Washington Post hide caption