A solitary desert locust can spend its life trying to avoid other locusts. Put enough of them together, however, and something extraordinary begins to happen. The insects become more active, stop repelling one another, start seeking company...
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Your passport knows exactly how old you are. Your cells are a more complicated matter. Two people born on the same day can reach middle age with very different cardiovascular health, physica...
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For decades, coffee has occupied an awkward place in conversations about heart health. It contains caffeine, a stimulant that can temporarily raise blood pressure and make some people feel t...
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When a tropical system appears in the Atlantic, the urge to watch it move across a map can become almost compulsive. A disturbance off Africa becomes a colored area on an outlook. A few days...
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A mosquito bite is usually an itchy annoyance that disappears within a few days. During summer and early autumn in the United States, however, one particular mosquito-borne infection repeate...
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When artificial-intelligence stocks surge, most attention goes to the companies designing the chips. Nvidia became the emblem of the AI boom because its GPUs perform much of the enormous par...
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During Atlantic hurricane season, a disturbance thousands of miles from Florida can become one of the most searched subjects in the United States within hours. A colored blob appears on a we...
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There is ordinary tiredness—the heavy-eyed feeling after a late night, a long flight or an exhausting week—and then there is the more puzzling question: Why am I tired all the time? You slee...
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Stand on a beach and the ocean looks almost two-dimensional: a glittering surface stretching to the horizon. The reality underneath is closer to an inverted mountain world. Plains, ridges, v...
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You are reading an email, driving home or trying to fall asleep when one eyelid begins to flutter. It stops. Ten minutes later it starts again. By the third day, a tiny muscle movement that...
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