Why are we more likely to get ill if we are cold?

BBC Earth (Asia) - - Science -

It’s partly be­cause ev­ery­one stays in­doors when the weather is bad, which helps germs to spread. But a 2014 study at Yale Univer­sity found that the rhi­novirus that causes most colds can only in­fect cells that are slightly be­low body tem­per­a­ture. Warm cells are able to fend off the virus by pro­duc­ing lots of in­ter­feron pro­teins. In cold air, the lin­ing of your nose gets chill­ier and the cells’ im­mune re­sponse is much weaker. LV

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