do they or don't then
Hmm, its a good question. I do know that on my last cycle i got had a flue for 4 weeks which has never happened to me before. Since gear has been made illegal some of these test that we would like people to conduct will probably never be done. I mean there are so many variables and types of gear one takes that it would take a whole slew of testing to find the answer to this. A good example of this is tren. There is very little information out there how tren effects the immune system or any other effects it has. All people know is that it works good for mass production and its relatively cheap (well if you make it yourself). I think this is a definity question that we all will be wondering for some time to come.
Peace,
Ncage