From the words of Dr Joseph Mercola:
He tells a story of how a man scedualed for a second bypass surgery decides he'd rather die then go through another bypass sergery so he rips out his IV's and checks himself out of the hospital. By luck he was refered to Dr. Mercola who put him on a special diet. Within months his condition was cleared up with no more chest pains. The Dr saved him from bypass surgery and eliminated the need to take insulin. Another patient who was refered to the doctor with a pre-diognosed condition of familial hyperlipidema and was prescribed with the maximum doses of all his medications. This actually was causing as the doctor put it: eating off his muscles including his heart. The patientwould have died if it weren't for Dr Mercola's guidence. I could go on but to make it short the doctor makes it clear that many of these disorders are treatable and that old age is actually a desease that can be treated. He says that you need to get to the root of the problem instead of treating the symtom. He points to Insulin as the major factor that plays a role in our health. It stores sugar to Glycogen, builds muscle and stores protien and magnesium But when the Insulin level is raised, the magnesium level goes down and the blood vessels constrict, which causes an increase in blood pressure and glucose and insulin can't get into the tissues. Magnesium is needed for the action of insulin and the manufacture of insulin. There's much more of which I can't cover here.