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New research finds that African-Americans who grow up in harsh environments and have many stressful experiences are much more likely to develop Alzheimer's or some other form of dementia.

Major food companies have cut trillions of calories, and studies show Americans are consuming fewer calories because of it. But some advocates think companies should do more to improve our diets.

Experiments in mice with a bone disorder similar to that in women after menopause show that a scientifically overlooked group of cells are likely crucial…

Tests show the water is improving overall, but officials aren't ready to publicly declare the water safe again. And even when they do, many residents say they will have a hard time believing it.

The president has already called the opioid crisis an emergency. If he makes it official through a formal declaration, more money and personnel could be available to deal with the epidemic.

At least 2 percent of people over age 40 and 5 percent of people over 70 have mutations linked to leukemia and lymphoma in their blood cells, according to…

Researchers have found a way to mass- produce the pancreatic cells that are insulin factories inside the body. The findings could eventually lead to treatments that would transform diabetes care.

Federal data, obtained by ProPublica under the Freedom of Information Act, show that nearly 1 million insurance transactions have taken place since the middle of April.

After speaking on "Sound Medicine" in November, Dr. Sid Schwab returns to discuss what happens when well-done surgeries have bad outcomes and the…

A Cape Cod treatment center says it is breaking addiction's hold — and saving money — by offering newly released patients daily, or even hourly, coaching by paid consultants.