Every day we see couples who have been married for 40 years who were high school sweethearts who fell in love as teenagers and have maintained an excellent relationship for a long period of time. We have seen in the discussions of sexual dysfunction for both male and female that the quality of the relationship with their partner is the key to normal sexual function. However, I have witnessed time and time again in my own practice the importance of good relationships in maintaining normal sexual function for both the male and female. However, you have also observed that many of the treatments discussed so far are more effective - often only effective - if applied in the context of a caring, loving sexual relationship. If you have read this far, you know this guide is about physical and psychological causes and treatments of male and female sexual dysfunction. Descriptions are found in ancient sacred texts, classic literature, and mythology as well as in today's popular songs, movies, and books in every language. What is love? Hopefully, in the future more scientific studies will be done that will isolate the active ingredients from some of these preparations and use those isolates in scientifically designed clinical trials and give us better answers to how to apply these materials for the best treatment of our patients.