Johnny, yes I am a physician and I do work out. In fact, I stress diet, exercise and weight loss to all of my patients. However, I agree with you that most physicians do not practice what they preach; it does piss me off to see a physician smoke for instance. However, I believe you are mistaking something grossly; medical science does not make blanket statements without scientific proof. For instance, over 50% if Pima Indians are diabetic; this has been proven over and over again. There is a known genetic basis for this. Type 2 Diabetes has an exceedingly high genetic basis; thus, if your mom had it you are at increased risk. Blacks are known to be at increased risk to be hypertensive; this has nothing to do with their conditioning. There are genetic basis for both hypertension and diabetes. Now, you use testosterone and only test. Let us see, do you honestly think that if you run of the threadmill for thirty minutes a day it would prevent the negative cholesterol side effects. The answer is no. Also, exercise only decreases a patient's cholesterol by 15-20% max. This has been studied. Even world class athletes are on lipitor or zocor. There is definitely a genetic basis. Here is a linky for you.
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=9537421Now, let us say you dabble in GH. You don't believe that an adult male with normal GH levels who takes in far more than is physiologically necessary will have side effects. Yes, long term studies are few and far between, but when kids who take just a enough GH to boost growth (miniscule compared to pro BB) have an increased risk for diabetes that should raise your eyebrows. GH does cause diabetes and I gurantee that if professional BB's who abused GH took routine bloodwork; this would come out. BTW, even if an athlete has hypertension or diabetes do you really think they would let anyone but their physicians and immediate family to know. No way as they are making a living doing this stuff.
Finally, do roids cause liver cancer? Well, once again you are uninformed. Alzado did not die of AIDS. He had a brain tumor. Did steroids contribute to this. We will never know, although I am sure they did not exactly slow down the cancer. However, anabolics (especially oral steroids which require two passes in the liver) can cause cirrhosis and cancer. Don't believe me, check out some links or just google it. There are numerous journal articles that show your ignorance. Word of mouth from your steroid dealers and buddies is not fact. In fact, most steroid abusers are so in the dark that it is actually quite scary that they would consider injecting or ingesting this stuff without medical supervision. It is stupid and dangerous. At least if you use, get a qualified physician who is not judgemental to test you. It is pretty easy. Well, here is the last link. Hope this clears up some of your misconceptions.
http://www.nida.nih.gov/SteroidAlert/SteroidAlert.html