Some researchers in the UK just discovered that being cold actually increases your risk of coming down with a cold! Read all about it here. Apparently, when you get cold, your blood vessels constrict, which keeps your infection-fighting white blood cells away from the places where icky viruses tend to hang out. Like your nose. So cold noses must be avoided at all costs! Luckily, this is another case when knitting saves the day. Enter the nosewarmer.