Suicidal tendencies are harmful not only for the victim but also for the people around them. The victims of this disorder can exhibit potentially dangerous behavior ranging from binge drinking to rash driving to unprotected sex. The may also indulge in gambling and drug addiction. All of this shows that the person has lost interest in life. There might be several reasons for suicidal tendencies, but some major reasons include emotional trauma or a tragic episode in life. Parting of a loved one or pet in tragic manner such as end of relationship or loss of life or an onslaught of a serious illness or crippling financial losses can be the potential reasons for these symptoms. http://www.therapytribe.com/therapy/suicide_therapy.html