Low sex drive is not uncommon in men, with 20 to 25 percent expressing having little interest for an extended period in the past year. But what about a sudden drop in male libido? It may be a touchy subject for some men, but it’s worth discussing if you feel your partner isn’t acting normal in the bedroom. In this special episode of "Am I Normal," Dr. Kirtly Parker Jones explores eight common reasons that may be behind your male partner’s low sex drive to answer the question of whether or not he’s normal.