In a study covering more than 2 million people in Britain, researchers from Nottingham University found that people using cholesterol-lowering statins have higher risks of liver dysfunction, kidney failure, muscle weakness and cataracts. For every 10,000 high risk women treated with statins, the positive impact would be around 271 fewer cases of heart disease and 8 fewer cases of esophageal cancer. On the other hand, there would also be 307 extra patients with cataracts, 74 extra patients with liver dysfunction, 23 extra patients with acute renal failure and 39 with a muscle weakness condition called myopathy. Similar figures were found for men except rates of myopathy were higher. For details, see