Book Review - A Billion Wicked ThoughtsSex addiction can manifest itself in many different behaviors, from excessive masturbation and pornography viewing to criminal acts such as exhibitionism, voyeurism, or in extreme cases, rape or molestation. A part of what makes sexual addiction very difficult to define is that the human sex drive varies greatly from person to person, and what is considered normal behavior by some may not be by others. In addition, some people are expected to have higher sex drive than others. For example, a teenage male who viewed pornography and masturbated daily would most likely not be considered a sex addict, but an adult woman with a husband and children would likely be said to have a sexual problem if she exhibited the same behavior.First, I will assure Tom and Susan that concerns about sexual abilities often occur at this stage in life and sexual development. I explain that although age does have a physical and psychological effect on sexual activity, the effects do not have to end all sexual activity. I will explain the decrease in sexual hormones and explain how they affect sexual performance in both sexes. Desire and ability may decrease