As a clinical psychologist specializing in couples therapy, sex is a hot topic between FitPerez correspondent Dr. Karen Stewart and her patients.
Sometimes the biggest problem in relationships is the LACK of sex between couples because one partner has lost their desire for it.
What can cause someone to NOT want to have sex? Check out the video above to find out!
If you EVER have any questions or need some quick advice, don't hesitate to tweet the sex therapist @DrKarenStewart or visit her website!
Tags: answers, couple, desire, lack of sex, partners, psychiatry, psychologist, questions, tweet, video