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 their heart beating faster. Yet large population st...
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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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On most nights, Americans who want to see the northern lights need to travel a very long way north. Then the Sun becomes unusually active, NOAA issues a geomagnetic-storm watch or warning, a...
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Few numbers can transform an ordinary convenience-store counter into a national obsession as quickly as a giant lottery jackpot. Once Powerball or Mega Millions climbs into the hundreds of m...
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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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On an autumn Sunday in the United States, a peculiar national clock starts ticking shortly before 1 p.m. Eastern Time. Televisions switch on. Fantasy lineups receive one last nervous inspect...
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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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Few English words have traveled as far politically as “woke.” Depending on who says it, the word can mean alert to racial injustice, broadly progressive, excessively politically correct, per...
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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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