Things that can scuttle good sex The brain is the body’s most important sex organ. This well known phrase bears more than a little truth. Functional sex organs, appropriate hormone levels, and the ability to become sexually aroused alone do not guarantee good sex. Other factors such as brain factors can get in the way. These include: Relationship issues Tension and emotional distance can undermine a couple’s sex life. Conflicts even when it has nothing to do with sex, like finances or child-raising issues, can be at the root of a sexual problem. A sexual issue also can strain a couple’s ability to get along. Performance anxiety When either the man or woman becomes so worried about sexual performance, then, sex is not enjoyable, or even possible. Performance anxiety becomes more common for both men and women as they move into their 50s. Body image and self-esteem A lot of things could make a person feel less sexy. Gravity is not kind to the bo...