A cholesterol-lowering drug appears to disrupt sleep patterns of some patients, researchers reported at the American Heart Association’s Scientific Sessions 2007.“The findings are significant because sleep problems can affect quality of life and may have adverse health consequences, such as promoting weight gain and insulin resistance,” said Beatrice Golomb, M.D., lead author of the study and an associate professor of medicine and family and preventive medicine at the University of California at San Diego School of Medicine.