I think a large part of the equation as to why current guys are getting so sick and having all these problems is the underground shit that comes from some guy's bathtub contaminated with heavy metals and who knows what else, as opposed to clean 100% pharma grade stuff that was rampant in the 70's and 80's. For example there is no way you can compare current day tren made from cow pellets to the original Parabolan from France and so on, everything these days is made in unsterile environments, underdosed and generally shit quality, unless you go to a doctor and get legit scripts for clean pharma gear.
Also, guys at much lower competition stages are taking 3x more then top pro's used to 20 years ago, guys doing level 1 and 2 shows are on 3 grams of test a week + 10iu's of gh and 30-40 iu's of insulin a day...that's for a LEVEL 1 or 2 show, nevermind top NPC guys.