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Three weeks of radiation works just as well as six weeks for most women with early stage breast cancer. But doctors have been slow to make that switch. Money may be one big reason why, a study says.

Doctors in the U.S. don't have to tell patients about conflicts of interest. When physician Leana Wen asked her fellow doctors to open up, the reaction she got was frightening.

DURHAM, N.C. – Women over the age of 70 who have certain early-stage breast cancers overwhelmingly receive radiation therapy despite published evidence…

In the face of abuse concerns, Medicare covered more prescriptions for potent controlled substances in 2012 than in 2011. Top prescribers often have faced disciplinary action or criminal charges.

Dr. Thomas Frieden visits West Africa this week to assess the fight against Ebola. His goal? Figure out how to keep the disease from turning into a permanent problem.

At 31, a woman had the bacteria in her gut catalogued as part of scientific project that aims to characterize the creatures that live inside us and affect our health. Here's what she found out.

The World Health Organization has added nearly 400 more deaths from the current outbreak since its last report earlier this week.

Guidelines just out from the American Diabetes Association say Asian-Americans with a typically healthy body mass index can still be running a substantial risk for developing diabetes.

A new study finds that people who read print books at bedtime fall asleep easier — and sleep better — than those who use an e-reader. Also: JRR Tolkien may have survived war due to a timely illness.

With this year's enrollment in Obamacare brisk, Health and Human Services Secretary Sylvia Burwell says she's not worried that the U.S. Supreme Court may yet overturn a key provision of the law.