It may be unseasonably warm now, but winter weather is on its way. If your knees, hips, or back start complaining when the temperature drops, you are not alone. KWTX@4's Justin Earley sits down with Dr. Laura Irvin with Baylor Scott & White Southwest Sports Medicine to explain what's actually happening inside your joints when temperatures drop, who is most affected by joint pain, and if cold weather can bring out pain from old injuries.