Ways To Keep It Low These days we hear a lot of warnings active cholesterol, but the funny thing is, cholesterol isn't complete bad. Your body produces it naturally and it performs some pretty indispensable jobs - helping to build spic-and-span cells, as healed as produce hormones and insulate nerves. Only when you've got too untold do you have a problem. Unfortunately, there's a lot of confusion surrounding this substance because it's ready-made up of some good and distressing cholesterol, and is known as HDL and LDL. So which is the good guy, and which is the bad guy ? HDL (high-density lipoprotein) cholesterol is the good guy (higher the better), and LDL (low-density lipoprotein) is the bad guy - the artery-clogging infinitesimal devil.