Are you tired? Do you feel that way a lot? Chances are, it's not just lack of sleep. Things you might not even think of are zapping your energy mentally and physically. Here are five reasons you're tired and ways to get your energy back.
As the U.S. tries to phase out a polluting refrigerant that is used in millions of air conditioners across the country, unapproved coolant is popping up on the market - with potentially dangerous consequences.