11.  Alcohol and substance abuse:  These are notorious killers, not only of marriages, but of the people who indulge excessively.  Research indicates that 40 percent of all Americans and Canadians are close family members of an alcoholic.

12.  Pornography, gambling, and other addictions:  It should be obvious to everyone that the human personality is flawed.  It has a tendency to get hooked on destructive behaviors, especially early in life.  During a introductory stage, people think they can tamper with various enticements, such as pornography, gambling, hard drugs, etc., without being hurt.  Indeed, many do walk away unaffected.  For some, however, there are a weakness and a vulnerability that are unknown until too late.  Such people then become addicted to something that tears at the fabric of the family.  This warning may seem foolish and even prudish to my readers, but I've made a 20-year study of those who wreck their lives. Their problems often begin in experimentation with a known vice and ultimately end in death...or the death of a marriage.

These are a few of the common marriage killers.  But in truth, the list is virtually limitless.  If you are going to beat the odds and maintain an intimate, long-term marriage, you must take the task seriously.  The natural order of things will carry you away from one another, not bring you together.

                                                 ~  Dr. James Dobson Focus on the Family