Low libido is the commonest sexual problem experienced by women. In fact every woman will experience low sexual desire at some time in her life, either in the short term (after the birth of a baby, during a stressful life period, when her relationship is rocky) or in the long term. When a woman's partner wants sex and she's no longer in the mood significant problems can occur in the relationship. Differing sex drives can lead couples down a path paved with frustration, resentment, misunderstanding and despair - a path that may lead to separation and divorce.