Heat Singes the Mind, Not Just the Body

If you find that the blistering, unrelenting heat is making you anxious and irritable, even depressed, it’s not all in your head. Soaring temperatures can damage not just the body but also the mind. As heat waves become more intense,…

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Blood of Young Mice Extends Life in the Old

A team of scientists has extended the lives of old mice by connecting their blood vessels to young mice. The infusions of youthful blood led the older animals to live 6 to 9 percent longer, the study found, roughly equivalent…

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