So what are triglycerides and how do they play into the cholesterol equation? Triglycerides are just another type of fat. Their job, if you will, is to store excess energy from whatever you eat and drink. High levels of triglycerides in the blood are associated with atherosclerosis. Elevated triglycerides can be caused by cigarette smoking, excess consumption of alcohol, being overweight or obese, physical inactivity, and a menu that is very high in carbohydrates (more than sixty percent of total calories). Underlying diseases (e.g., diabetes, heart disease) or genetic disorders may sometimes contribute as well. People with high triglycerides often have a high total cholesterol level, including a high LDL cholesterol (bad) level and a low HDL cholesterol (good) level. Creating and maintaining a Longevity Lifestyle can help bring brain and body chemistry into balance, including cholesterol and triglyceride levels.