Some scientists are confident that organs from genetically modified pigs will one day be routinely transplanted into humans. But substantial ethical questions remain.

After a court overturned a ban, the agency has proposed restricting chlorpyrifos to 11 food crops, illustrating the limits of federal regulation.

Some researchers said the advice did not go far enough. The panel also declined to recommend extra scans for women with dense breast tissue.

After dropping two Harvard experts who had received industry support, the National Academies turned to a colleague with a similar background.

Two researchers with ties to beer and liquor companies have been named to a panel that will review the health evidence on alcohol consumption.

The review found that the methodology of many previous studies was flawed and that risk of myriad health problems increased significantly after less than two...

Duodenoscopes — tubular cameras threaded into the intestine — with disposable parts were supposed to be safer. But the parts can fall off in the...

Citing costs, many hospitals are closing labor and delivery wards, expanding so-called maternity care deserts.

Draft recommendations by the agency describe dry eyes, visual disturbances and other side effects of the procedure. Surgeons say the benefits are being ignored.

As offices, restaurants and schools fill up, people are adjusting expectations and habits in another moment of deep uncertainty.