Visit these links to learn more about addiction:
http://www.medicalnewstoday.com/info/addiction/
http://en.wikipedia.org/wiki/Addiction
http://www.psychologytoday.com/basics/addiction
Visit these links to learn more about addiction:
http://www.medicalnewstoday.com/info/addiction/
http://en.wikipedia.org/wiki/Addiction
http://www.psychologytoday.com/basics/addiction