Though it remains a common practice, requiring patients to have nothing by mouth (NPO) for several hours before percutaneous cardiovascular procedures doesn’t appear to have any advantages over ...

During fasting or exercise, immune cells (red) migrate to the pancreas and stimulate glucagon-producing cells (orange) to regulate blood sugar, with cell nuclei shown in blue. “For decades, immunology ...

Dear Dr. Roach: I'm a 70-year-old woman. I have Type 2 diabetes, and my morning fasting blood sugar numbers are all over the place. It's very frustrating. I take glipizide and metformin. Could you ...