Health - Monday, May 4, 2026

One case of hantavirus infection has been confirmed in a laboratory, the organization said on Sunday. There are five additional suspected cases.

France's medicines regulator has fined Novo Nordisk and Eli Lilly over their weight loss ad campaigns.

Some screenings and treatments no longer make sense for patients as they age. Researchers have just added a few more to the list.

A new study suggests a surprisingly simple compound could help fight Alzheimer’s disease. Researchers found that arginine—an inexpensive amino acid already considered safe—can reduce the buildup of toxic amyloid proteins in the brain, a hallmark of the disease. In animal models, oral arginine not only lowered harmful protein deposits but also improved behavior and reduced brain inflammation.

The 5th Circuit’s ruling on mifepristone “is bad for health care access, and it’s also bad for innovation,” writes Grace E. Colón.

For decades, relaxor ferroelectrics have powered everything from medical ultrasounds to sonar systems, yet their inner atomic structure remained a mystery—until now. Researchers have finally mapped their three-dimensional structure in unprecedented detail, uncovering hidden patterns in how electric charges are arranged at the nanoscale. The breakthrough not only challenges long-standing assumptions about how these materials behave but also allows scientists to refine the models used to design them.

The Supreme Court on Monday restored broad access to the abortion pill mifepristone, blocking a ruling that had threatened to upend one of the main ways abortion is provided across the…

A research letter published on Monday in JAMA Pediatrics argues that paternal mortality deserve more attention

It's tough to write nuanced headlines, but a new study on AI in emergency rooms is getting way overhyped.

The drugs are 10 times more dangerous than fentanyl. They are showing up in street drugs in the South and the Midwest, and will most likely spread to other regions.