Cholesterol levels vary with the seasons, reaching their highest levels in the winter months, according to an article in the April 26 issue of The Archives of Internal Medicine, one of the JAMA/Archives journals.
According to the article, a variety of studies have suggested that cholesterol levels are higher in the fall and winter than they are in the spring and summer. Although the mechanism for this phenomenon is not clear, such variation could result in larger numbers of people being diagnosed as having high cholesterol in the winter, the article states.
Ira S. Ockene, M.D., of the University of Massachusetts Medical Center, Worcester, and colleagues investigated the seasonal variation in cholesterol among 517 healthy volunteers from a health maintenance organization serving central Massachusetts. Data were collected quarterly over a twelve-month period on diet, physical activity, exposure to light, general behavioral information, and cholesterol levels were also measured.
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