Have you ever heard the frightening story that 'greasy buildup' gathers in your blood and clogs your blood vessels? In modern medicine, 'hyperlipidemia' is more precisely referred to as 'dyslipidemia'. This concept encompasses states where fat components in the blood, such as cholesterol and triglycerides, are higher than normal, or conversely, where good cholesterol is insufficient. These lipids circulate through the whole body via the bloodstream, serving as an energy source for our bodies and composing cell membranes. While they play essential roles, disrupting this balance can cause very serious problems.
In particular, low-density lipoprotein (LDL) cholesterol, known as bad cholesterol, deposits on vascular walls and serves as the primary culprit inducing atherosclerosis. Triglycerides represent surplus energy stored in the form of fat; if excessively high, they can increase the risk of pancreatitis and make the blood sticky, hindering blood circulation. On the other hand, high-density lipoprotein (HDL) cholesterol reliably plays the role of a vascular cleaner by carrying bad cholesterol accumulated in the vessels back to the liver for excretion.
When such dyslipidemia persists, fatty masses called plaques accumulate on vascular walls, progressing into atherosclerosis where blood vessels harden and narrow. Arteriosclerosis is all the more frightening because it has no special symptoms in its early stages. Much like rust accumulating in an old water pipe and gradually clogging it, narrowed blood vessels impair blood supply, which can lead to life-threatening cardiovascular and cerebrovascular diseases such as angina pectoris, myocardial infarction, and wind stroke. Because these diseases can leave severe sequelae or even lead to death once they occur, they are sometimes called silent killers.
Major risk factors for dyslipidemia include poor dietary habits such as excessive intake of saturated fat, trans fat, cholesterol, and simple carbohydrates, lack of exercise, being overweight or obese, smoking, and excessive drinking. In addition, it can occur due to genetic factors or as a complication of other diseases such as diabetes, hypothyroidism, and kidney disease. Recent studies also warn that stress can influence the lipid balance in the blood.
Dyslipidemia is usually diagnosed through routine blood tests that check levels of total cholesterol, LDL cholesterol, HDL cholesterol, and triglycerides. Treatment is largely divided into lifestyle modification and drug therapy. Lifestyle modification is founded on dietary management centered on vegetables, fruits, and whole grains, with limited saturated fat intake, regular exercise, smoking cessation, moderation in drinking, and weight management. When lipid levels do not improve despite these efforts, or when the risk of cardiovascular and cerebrovascular disease is high, drug therapy is combined. The most commonly used class of drugs is statins, which effectively lower LDL cholesterol levels by suppressing cholesterol synthesis in the liver. Aside from these, diverse therapeutic agents, such as fibrates that lower triglycerides and medications that inhibit cholesterol absorption, are prescribed according to the patient condition.
Most importantly, one must recognize that dyslipidemia is a silent disease and detect and manage it early through regular checkups. Even at a young age, cases of dyslipidemia are increasing due to Westernized dietary habits and lack of physical activity, so everyone should pay attention to their blood health regardless of age. Protecting your vascular health in advance is the shortcut to enjoying a healthy life for a long time.
