When Stephen Kornfeld set sail aboard the MV Hondius in early April, his grand plan for the cruise was to add as many new species as possible to his birding…

Over the weekend, reproductive-health-care providers across the country confronted a puzzle they had never before needed to solve at scale: how to offer medication abortion without mifepristone. The drug, also…

Norovirus loves a cruise ship. So did the coronavirus responsible for COVID-19. The crowded rooms, stuffy air, and communal dining of a giant boat filled with humans create the ideal…

In recent years, the perils of body mass index, or BMI, have become a hobbyhorse for professionals in several fields of medicine and research. For decades, doctors have used BMI…

Supposedly, the menstrual cycle is a gift. It’s a product of good design. It’s a miraculous dance of hormones that can’t be contained. Such are the messages flooding the internet…

One day last November, my dog, Forrest, sat on the cold marble steps of the Smithsonian’s natural-history museum in Washington, D.C., ready to meet Celine Halioua, a woman who may…

If Isabel Allende’s office needs to be painted, it has to be done by January 8 or put on hold. Every year, that’s the day she starts writing. The pattern…

As of today, it seems likely that the nation’s next surgeon general will, at least, have an active medical license. President Trump announced that he was pulling his nomination for…

To understand the significance of someone running a marathon in less than two hours, you also need to understand that, until recently, the notion of this actually happening was truly,…

This morning, a crowd gathered near the Supreme Court to protest the weed-killer Roundup. Inside, justices heard arguments for Monsanto v. Durnell, weighing whether to exempt the company that created…