Many overlook the warnings preceding workout classes that encourage consulting a doctor before participating in rigorous exercise. After all, isn't exercise good for you? However, certain conditions could make the increased ...
Jun 20, 2023
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Improved ventilation can lower the risk of transmission of the COVID-19 virus, but large numbers of decades-old public school classrooms lack adequate ventilation systems. A systematic modeling study of simple air cleaners ...
May 11, 2021
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Researchers from the Universities of Bristol and Surrey have found that well-fitting, three-layered cloth masks can be as effective at reducing the transmission of COVID-19 as surgical masks.
Apr 28, 2021
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Aerosol microdroplets, the tiny particles that linger in the air longest after we talk, cough, or sneeze, do not appear to be extremely efficient at spreading the virus that leads to COVID-19.
Oct 27, 2020
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What are the chances of finding advanced civilizations beyond Earth? In 1961, astronomer Frank Drake developed a mathematical formula to estimate the probability of finding intelligent aliens in the Milky Way. His simple ...
Oct 22, 2020
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Cancer metastasis, the escape and spread of primary tumor cells, is a common cause of cancer-related deaths. But metastasis remains poorly understood. Studies indicate that when a primary tumor breaks through a blood vessel ...
Aug 24, 2012
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