Most people who are even a little bit concerned about their cholesterol know that there is a “good” kind—known as HDL—and a “bad” kind—known as LDL. Research has shown that the higher the amount of HDL and the lower the amount of LDL in the blood, the less likely a person is to suffer a heart attack or stroke. As for the one in six Americans with unhealthy cholesterol levels, well, they can always hope to change their luck with a cholesterol-changing medication or two. Or can they?
Two major clinical trials in the past three years have greatly complicated the picture for these and perhaps other folks. The first study, from 2008, shows that lowering LDL levels does not always decrease the risk of having a heart attack. Similarly, results from the second study, released in the spring of this year, show that raising HDL levels does not always translate into fewer heart attacks or strokes.
To read the full, original article click on this link: Cholesterol Conundrum: Scientific American
