There can be many reasons for problems. It could be an illness such as diabetes, drug addiction, medication, or even a psychological problem causing the sexual dysfunction. I had an experience with a man who suffered from erectile dysfunction. (Impotence) Not only was his diabetes due to diabetes, but the fear of not being able to perform also contributed to the problem. Women also suffer from sexual dysfunction. Menopause can contribute to sexual dysfunction in women. Many women have to use lubricants because their bodies do not produce adequate lubrication for sexual intercourse. The book claims that people with spinal cord injuries can have a sex life. I was actually surprised by this. I couldn't imagine wanting to be sexually active if I was in a wheelchair. I think I would feel useless if that were the case and would have little desire to do much. However, I've never faced this, so I don't know how I could do it.