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The cells regained a startling amount of function, but the brains didn't have activity linked with consciousness. Ethicists see challenges to assumptions about the irreversible nature of brain death.

The FDA tested 95 products containing benzoyl peroxide, an ingredient widely used to treat acne that can form benzene as a byproduct. It found that six products could have more benzene than usual.

Russia's president welcomed the idea of a ceasefire but warned Ukraine might use a 30-day truce to regroup and questioned how it would be enforced, as President Trump's envoy visited Moscow.

An Israeli airstrike targeted a building in an upscale neighborhood, destroying an apartment that neighbors said had been vacant for years.

The 68-team fields for the men's and women's NCAA basketball tournaments will be unveiled Sunday night, and the games begin next week.