Health

A woman holds a fan in front of a bottle-fed baby at the Great American State Fair, during an extreme heat wave, Friday, July 3, 2026, on the National Mall in Washington. (AP Photo/Julia Demaree Nikhinson)

The sun is obscured by wildfire smoke as a person runs in front of the Washington Monument and Lincoln Memorial Reflecting Pool, Friday, July 17, 2026, on the National Mall in Washington. (AP Photo/Julia Demaree Nikhinson)

FILE - A person uses a smart phone in Chicago, Sept. 16, 2017. (AP Photo, File)

FILE - A vial of testosterone cypionate in Columbus, Ohio, on Jan. 18, 2024. (AP Photo/Carolyn Kaster, File)

FILE - The logo for Merck appears above a trading post on the floor of the New York Stock Exchange, May 1, 2025. (AP Photo/Richard Drew, File)

FILE - A human brain affected by Alzheimer's disease is displayed at the Museum of Neuroanatomy at the University at Buffalo in Buffalo, N.Y., on Oct. 7, 2003. (AP Photo/David Duprey, File)

FILE - Sen. Mitch McConnell, R-Ky., right, walks through the Capitol, Jan. 15, 2026, in Washington. (AP Photo/Allison Robbert, File)

This undated photo taken through a microscope provided by the CDC shows Cyclospora cayetanensis oocysts found in a fresh stool sample which had been prepared with a formalin solution and stained with safranin. (CDC via AP)

Ivan Shostak, right, a blind Ukrainian war veteran touches an injured arm of his comrade during a pottery workshop at a rehabilitation center in Vinnytsia, Ukraine, on May 21, 2026. (AP Photo/Evgeniy Maloletka)

These brain scan images provided by Biogen show how high levels of Alzheimer's-related tau protein, in red, dropped in a recipient of the company's experimental drug diranersen. (Biogen via AP)

Kimchi, sauerkraut and yogurt are displayed on a kitchen table in New York on July 10, 2026. (AP Photo/Mary Conlon)

FILE - Health and Human Services Secretary Robert F. Kennedy, Jr., arrives on stage at the inaugural Make America Healthy Again summit, Nov. 12, 2025, in Washington. (AP Photo/Rod Lamkey, Jr., File)