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Especial coronavirus

El coronavirus llegó a Estados Unidos más tarde que a otros países. Pero ahora, con la mayor cantidad de casos confirmados en el mundo, el Gobierno debió, … source

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Why Exercise Is So Good For You

This is Scientific American’s Science Talk, posted on April 24th, 2020. I’m Steve Mirsky. And under our current, often locked-down situation, it’s still really important to try to get some exercise. Judy Foreman is the author of the new book Exercise is Medicine: How Physical Activity Boosts Health and Slows Aging. She’s a former nationally […]

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How Blood Sugar Can Trigger a Deadly Immune Response in the Flu and Possibly COVID-19

Many of the people dying in the novel coronavirus pandemic appear to be harmed more by their own immune system than by the virus itself. The infection can trigger a cytokine storm—a surge in cell-signaling proteins that prompt inflammation—that hits the lungs, attacking tissues and potentially resulting in organ failure and death. But this phenomenon […]

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The Science behind How Coronavirus Tests Work

So you think you may have COVID-19, and you want to get tested. Your first problem might be finding a test, depending on where you live and how sick you currently are. A recent survey conducted with administrators from 323 hospitals across the United States found… Quote: “Hospitals reported that severe shortages of testing supplies […]

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Reporter Describes Horror of San Francisco Quake

Originally published in April 1906 Credit: Scientific American Advertisement “The full horror of the devastation which last week swept San Francisco and adjacent cities burst upon us. The earthquake which was the ultimate cause of the destruction of the greatest American city on the Pacific coast was incomparably the severest ever recorded in the United […]

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Coronavirus Roundup for April 18-24

The items below are highlights from the newsletter, “Smart, useful, science stuff about COVID-19.” To receive newsletter issues daily in your inbox, sign-up here: A HealthNewsReview.org critique of coverage of a study (not reviewed by experts) of exhaled respiratory droplets pertains to joggers, walkers, and others engaging in outdoor activities: “New York Times ‘Well’ column […]