Reasons for lack of female sex drive. In the study, researchers found that nearly one-third of the men who had severe sleep apnea also had reduced levels of testosterone. However, low libido for a long period of time may cause concern for some people. Choose Category abuse birth control dating orgasm relationships sex stds. A lack of female libido can be the result of both physical and psychological factors - each requires its own method of treatment. If you want to have sex less often than your partner does, neither one of you is necessarily outside the norm for people at your stage in life — although your differences may cause distress. Taking the Pill reduces production of testosterone and eliminates the monthly peaks of sexual interest. ED may cause a man to experience anxiety around sex. Low libido is also a side effect of some antidepressants, including:.