Health and Human Services Secretary Robert F. Kennedy Jr. attracted notice—and in some quarters, outrage—for remarks about autism, a topic he's clashed with scientists about for years.

Ketamine addiction is linked to high levels of physical health problems and psychological consequences, with nearly half of those affected not seeking support or treatment, new research has revealed.

Teams of health care providers called Accountable Care Organizations participating in the Medicare Shared Savings Program have saved Medicare between $4.1 billion and $8.1 billion from 2012 through 2019, according to a new study by Weill Cornell Medicine investigators. The study, published April 28 in JAMA, is thought to be the first to investigate the long-term impact of the program.

Pembrolizumab (Keytruda) given before and after surgery to supplement adjuvant therapy improved responses and survival in patients with previously untreated, locally advanced head and neck squamous cell carcinoma (HNSCC), according to Phase III clinical trial results presented at the American Association for Cancer Research (AACR) Annual Meeting 2025, held April 25–30.

Much of the work devoted to exploring potential sex-specific differences in exercise or sports performance has been derived from laboratory-based studies. While these studies are typically well-controlled and guide an understanding of physiological mechanisms, they may lack pragmatic or practical relevance to the "real world."