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And why some women never get them.

The post What happens inside your body during a hot flash appeared first on Popular Science.

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The work of Peter Aaby and Christine Stabell Benn has long been controversial. Until Robert F. Kennedy Jr. became US health policy chief, most vaccine scientists tended to ignore it. Now they can’t.

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CAR-T cell therapy is already a potent treatment for certain cancers. Now, a small study is showing early promise for managing HIV.

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There are no confirmed cases in the US, but 41 people who were potentially exposed to the Andes virus are in quarantine or being monitored for symptoms.

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A University of Nebraska lab has developed a test that can detect the virus before symptoms become severe. Now, it's ready to start testing those returning to the US after a cruise outbreak.