The New York Times

They thought it might explain why their health had diverged. Instead, it stirred up feelings that weren’t so easily quantified.

Vaccine safety experts say more research into the side effects would be welcome yet question whether the health secretary’s effort will be grounded in science.

Senator Patty Murray, a former chair of the Senate health committee, is forming a group of experts to examine how to insulate the C.D.C. from political interference.

The networks also develop treatments and preventions for other infectious diseases and were instrumental in testing the Covid vaccine.

The microbiome isn’t what it used to be in many parts of the world. The shift of species may be affecting the well-being of people in industrialized countries.

The son of Cindy Crawford, who died last month, left behind a trove of first-person testimonials about years of drug use, trying to stay clean and his mental health.

Ken Paxton, the Texas attorney general and Republican Senate candidate, has alleged a sprawling profit-driven conspiracy. Pediatricians say the accusations are an attempt at intimidation.

Karl Deisseroth, Peter Hegemann, Georg Nagel were awarded the prize for their work on light-gated ion channels and optogenetics.

By pinpointing when it begins in young humans, scientists hope to better understand what consciousness is, and how it arises, in all of us.

Cancer patients are being persuaded to spend tens of thousands on unproven treatments by alternative-medicine clinics.

Small particulates sent up by wildfires are a well-documented health hazard. But recent research finds that ground-level ozone is now on the rise, too.

Salata Dressings initiated the recall of its Jalapeño Avocado Dressing in August over concerns about possible salmonella contamination.

The discovery adds strong evidence that the outbreak that sickened thousands over the summer originated in the company’s fields or processing facility in northeastern Mexico.

Found in 70 percent of cancers, the gene is seen as a grand orchestrator but has been surprisingly difficult to stop.