By Korin MillerOriginal Source: sports.yahoo.comFans of Demi Lovato were shocked Tuesday when news broke that the singer was hospitalized after a drug overdose.Lovato’s overdose came at the end of an all-night party at her home, police told TMZ, and she was administered Narcan, a drug that is designed to treat a narcotic overdose in an emergency situation. The drug that caused her overdose has not been revealed publicly.Lovato, 25, has been very out in the open about getting sober after struggling with drug abuse and revealed that she had relapsed after years of sobriety in a new single released in late June called “Sober.” “To the ones who never left me, we’ve been down the road before. I’m so sorry. I’m not sober anymore,” she sings in the song. “I’m sorry that I’m here again. I promise I’ll get help.”Abusing drugs in any situation is dangerous, but it’s especially so after becoming sober, Jamie Alan, PhD, an assistant professor of pharmacology and toxicology at...click here to continue reading