Add Yahoo as a preferred source to see more of our stories on Google. It's all about holding on to the heat you have. Jason Rosewel/Unsplash, CC BY Whether waiting for a bus, playing outside or ...
It happens more often than you realize. You’re drifting off into sleep, but suddenly, you feel an unexplained chill. You grab for another blanket, pull your hoodie tighter or tuck your feet in deeper.
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