Word: hdl
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...hubbub about estrogen, its workings are still somewhat mysterious. "We attribute the rise in heart disease to menopause, in which the estrogen supply is diminished," says Columbia's Giardina. "Yet we really don't know how estrogen works." The hormone is known to promote higher levels of HDL, the "good cholesterol" that helps keep arteries clear. Yet estrogen increases HDL by only 10% or 15%, and Giardina suspects that is not enough to account for the dramatic difference in heart disease rates between men and premenopausal women...
...somewhat different role in female patients. Dr. John Crouse, a lipids researcher at Bowman Gray School of Medicine in North Carolina, notes that women seem to be less vulnerable than men to high levels of LDL, the so-called bad cholesterol, and more vulnerable to low levels of HDL, the "good" cholesterol. Diets that reduce both levels, such as the one promoted by the American Heart Association, may actually harm women, Crouse argues. The dearth of data on women and heart disease may also have contributed to an alarming problem: women are significantly more likely than men to die after...
...people in the Massachusetts town, offers this prescription for regression: reduce the level of total cholesterol below 150 mg per deciliter of blood and the level of LDL, the bad form of cholesterol that clogs arteries, below 90. In addition, says Castelli, the ratio of total cholesterol to HDL, the good cholesterol that helps clear arteries, should be less than...
...obesity. Even the idea that cholesterol is "bad" is seriously flawed, since the chemical is produced naturally in the body and is vital to the functioning of human cells. It is carried in the bloodstream by two types of molecules: low-density lipoproteins (LDL) and high-density lipoproteins (HDL). Too much LDL is harmful because it contributes to the accumulation of fatty deposits that block arteries, but large amounts of HDL are thought to be beneficial because they seem to help clean the blood vessels. Moore correctly points out that many routine cholesterol checks may be misleading, since the tests...
COVER: The encouraging news is that HDL, the "good" cholesterol, may be your best ally in fighting heart disease...