TIL during the winter, people spend more time indoors with the windows sealed, so they are more likely to breathe the same air as someone who has the flu and thus contract the virus.Days are shorter during the winter, and lack of sunlight leads to low levels of vitamin D decreasing immunity to virus


TIL during the winter, people spend more time indoors with the windows sealed, so they are more likely to breathe the same air as someone who has the flu and thus contract the virus.Days are shorter during the winter, and lack of sunlight leads to low levels of vitamin D decreasing immunity to virus http://sitn.hms.harvard.edu/flash/2014/the-reason-for-the-season-why-flu-strikes-in-winter/ s4nskrit December 30, 2020 at 07:21PM

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