If you remember what statin drugs do, they lower cholesterol, and specifically LDL cholesterol. Dr. Martin has never understood why you’d want to have low cholesterol when your body actually needs it. Dr. Martin looks at 3 studies on statin drugs published in the last week, and it’s not good news. From depleting your immune system, to increasing your risk of breast cancer, to being more susceptible to autoimmune diseases like lupus, this is all possible when you lower your LDL cholesterol.