Nation

Follow PBS NewsHour’s complete coverage of U.S. news, reports and analysis.

Nov 11

Big studies give mixed news on fish oil, vitamin D

Fish oil taken by healthy people, at a dose found in many supplements, showed no clear ability to lower heart or cancer risks. Same for vitamin D. But higher amounts of a purified, prescription fish oil slashed heart problems and…

Nov 11

From shell-shock to PTSD, a century of invisible war trauma

We now know that what these combat veterans were facing was likely what today we call post-traumatic stress disorder, or PTSD. We are now better able to recognize it, and treatments have certainly advanced, but we still don’t have a…

Nov 10

The Saudi-led coalition fighting in Yemen said early Saturday it had “requested cessation of inflight refueling” by the U.S. for its fighter jets after American officials said they would stop the operations amid growing anger over civilian casualties from the…