Psychology and Addiction: Is addiction an illness or a form of weakness?

Psychology and Addiction: Is addiction an illness or a form of weakness?.

 write an argumentative essay using logical and professional courtesy on why addiction is an illness, not a form of weakness. Have at least 3 or more supporting ideas towards this. The essay to be logical but not overly complicated and hard to read. Do not  sound too complex because it will not fit my style. Include some in-text citations. Must have 5-8 sources and 3 of those must be from a primary source. Also, at least 6 of the sources must be from scientific journals, books, or magazines, and no more than 2 internet sites.

Psychology and Addiction: Is addiction an illness or a form of weakness?