Because its so cold outside u can get sick at anytime of the days.so u always have to remember too dress up warm so u would get cold make sure u have an hat gloves and boots on if u need them in the winter time because your feets can get really cold and something for your face to cover that up too then u shouldn't get sick at all anymore.then u have too. and i always will not like the winter time .lol and i really mean it.