5StarSquatHotel
Bluelighter
I did not have a cold or flu for years on end till I got clean, it then seemed like all the colds and flu I missed hit me at once and lasted weeks on end haha
I'm not sure if any formal research has been done on this subject, but its a phenomenon that has been discussed a few times around here and nearly every respondent has the same experience. I suspect symptomatic relief probably plays a role but it seems that people are getting sick from common colds and the flu less often still. I wish I had more definitive information on this.
However, from several animal studies it emerges that not all opioids induce the same immunosuppressive effects, and evaluating each opioid's profile is important for appropriate analgesic selection.
Opiates compromise the natural and adaptive immune system
http://www.ncbi.nlm.nih.gov/pubmed/1301643
http://www.ncbi.nlm.nih.gov/pubmed/8947928
http://www.ncbi.nlm.nih.gov/pubmed/16764216