Cholesterol does not cause heart disease in the elderly and trying to reduce it with drugs like statins is a waste of time, an international group of experts has claimed. A review of research involving nearly 70,000 people found there was no link between what has traditionally been considered bad" cholesterol and the premature deaths of over 60-year-olds from cardiovascular disease. Published in the BMJ Open journal, the new study found that 92 percent of people with a high cholesterol level lived longer. The authors have called for a re-evaluation of the guidelines for the prevention of cardiovascular disease and atherosclerosis, a hardening and narrowing of the arteries, because "the benefits from statin treatment have been exaggerated". Co-author of the study Dr Malcolm Kendrick, an intermediate care GP, acknowledged the findings would cause controversy but defended them as "robust" and "thoroughly reviewed". Vascular and endovascular surgery expert Professor Sherif Sultan from the University of Ireland, who also worked on the study, said cholesterol is one of the "most vital" molecules in the body and prevents infection, cancer, muscle pain and other conditions in elderly people. "Lowering cholesterol with medications for primary cardiovascular prevention in those aged over 60 is a total waste of time and resources, whereas altering your lifestyle is the single most important way to achieve a good quality of life," he said.