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Evaporating water is essential to helping your body cool down. Imgorthand/E+ via Getty Images

Why is water wet?

You can feel wet when you can see water and when you can’t see water. You can also feel dry even when there’s a lot of water vapor in the air – like during a fire.
Amazon’s AI shopping assistant, Rufus, on a computer monitor on Dec. 1, 2024, in New York. Company apps, including Rufus, may make it easier to shop, but consumers might balk at giving up too much of the shopping experience. AP Photo/Peter Morgan

What we lose when artificial intelligence does our shopping

Retailers are racing to hand your shopping over to AI. Consumers are right to be wary – and not just about privacy.
Some people with Type 1 diabetes wear continuous glucose monitors to manage their condition. Svetlana Repnitskaya/Moment via Getty Images

Umbilical cord blood may hold clues for a child’s risk of developing Type 1 diabetes

Genetics may only partially determine a newborn’s risk of developing Type 1 diabetes. Screening umbilical cord blood could lead to earlier treatments to prevent or reduce disease.