mugwump wroteCalcification of the arteries or "hardening of the arteries" as it is commonly called is the build up of plaque created by LDL (low density lipids) a component of cholesterol. This is the bad stuff that coagulates, hardens and forms plaque in the arteries that ultimately blocks the arteries and causes heart attacks.
HDL (high density lipids) is the "good" cholesterol that scours the bad cholesterol from arterial walls and carries it away. Cholesterol check ups can determine the amount of good and bad cholesterol in your arteries. This along with measuring triglycerides can tell you by a simple inexpensive test the health of your heart.
Medicine is an art, not a science. At best it is an empirical science, and therefore subject to fades. Cholesterol is one of the many examples. When I was a young man in my 30's, I started having regular yearly check ups. My total cholesterol was 280 and it was consider "normal," especially since my HDL was above 80. As years went by, that total level became too high, and soon, the doctors decided that one should tried to have a total cholesterol around 200. Since, as you know, our own liver produces about 80% of the stuff, the remaining 20% being influenced by the diet and living style, one is rather limited in how to handle the problem of a high cholesterol. Then came the statins, which have been definitely found to reduce cardiovascular disease and mortality in people who are at high risk of cardiovascular disease. For several reasons, I personally resisted my doctors, and continued to take Niacin, a natural vitamin, vitamin B3[B],[/B] until only recently: they wore me down and also, I was convinced by the tons of medical data that statins are of benefit. Of course, one must always be very careful with the rapacious pharma industry, but also with the "medical fashions" ! Luckily, statins are now cheap in price. Without changing my diet + statin, my cholesterol is around 180, but my cardio suggested may around 150!? They're never satisfied...
By the way, over the last 10 years or so, the role of the benefit of a high HDL is being questioned!