Let's take a step back for a second to discuss what cholesterol actually is. The National Heart, Lung, and Blood Institute defines cholesterol as, "a waxy, fat-like substance that’s found in all cells of the body." Cholesterol is carried through your body by two types of lipoproteins, one good and one very bad. When people talk about having high cholesterol they mean high levels of LDL, the bad lipoprotein. The problem is that the only way to know if your cholesterol levels are high is to go to the doctor and get tested. "Cholesterol issues may be a silent issue — you may not present with some overt signs and symptoms," Dr. Michael Krychman, MD, OBGYN, Sexual Medicine Gynecologist and the executive director of the Southern California Center for Sexual Health and Survivorship Medicine, tells Bustle.