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When Good Cholesterol Isn’t Good

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Your bad cholesterol is too high. Your good cholesterol is too low. If I’d put a dollar in the bucket every time I’ve heard my doctor tell me that I need to lower my “bad” (low-density lipoprotein – LDL) cholesterol and raise my “good” (high-density lipoprotein-HDL) cholesterol, I’d probably have been able to take an around the world vacation by now and bring the whole family along! The raise-your-good-cholesterol-and-lower-your-bad-cholesterol is a mantra that many hear repeated on the lips of our doctors for years after the results from our annual cholesterol check are in. Like sheep, we dutifully go forward on a quest to lower the bad and raise the good.

New research, however, indicates that sometimes having too much of a good thing isn’t really so good for us after all. The American Heart Association recently published findings in its journal, Arteriosclerosis, Thrombosis, and Vascular Biology, which indicated that higher levels of good cholesterol may actually cause some people to be at greater risk for developing heart disease or suffering a coronary or cardiovascular event such as heart attack, death, or chest pains.

The discovery was made in part as a result of a highly publicized trial conducted by Pfizer for the HDL cholesterol raising drug, torcetrapib. Since its long been assumed that higher levels of HDL cholesterol are good for everyone, torcetrapib would have been a home run both financially for Pfizer and for patients seeking to raise their low HDL cholesterol levels. The early study was discontinued in 2006 because researchers saw an unusually high number of cardiovascular events, including participant deaths. The common thread between the coronary events was the levels of the participants HDL cholesterol. Surprisingly, the cardiac events were not being suffered by participants with low HDL cholesterol. The participants involved in the cardiac events were those with higher levels of HDL cholesterol.

The findings that high levels of good cholesterol can be too much of a good thing for some people were also reported in a study sponsored by the National Heart, Lung and Blood Institute at the National Institutes of Health.

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We value and respect our HERWriters' experiences, but everyone is different. Many of our writers are speaking from personal experience, and what's worked for them may not work for you. Their articles are not a substitute for medical advice, although we hope you can gain knowledge from their insight.

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