What is Good and Bad Cholesterol?
Cholesterol is a fatty, wax-like material present in every cell of the body. It is essential for the formation of hormones, vitamin D, and compounds that assist in food digestion. Nevertheless, cholesterol is not always the negative character it is frequently depicted as. There are two primary types, each with distinct functions and effects on your health: good cholesterol and bad cholesterol.
Understanding Good Cholesterol
Good cholesterol, also referred to as High-Density Lipoprotein (HDL) in medical terminology, plays a positive role in your body. HDL functions like a sweeper for cholesterol within the bloodstream. It removes cholesterol from different areas of your body and carries it back to the liver, where it undergoes either decomposition or removal from the system. An increased amount of HDL cholesterol lessens the chance of heart disease and stroke.
Several studies have shown that people with higher levels of HDL cholesterol tend to have lower levels of inflammation in their arteries. This means that along with cleaning your bloodstream, HDL also helps maintain the integrity and function of your blood vessels. For instance, a 2016 study published in the American Heart Journal found that each 0.1 mmol/L increase in HDL cholesterol was associated with a 10% lower risk of cardiovascular events in studied populations.
To enhance HDL amounts, add good fats to your meals, including olive oil, oily fish like salmon, and nuts. Engaging in consistent exercise, consuming alcohol in moderation, and quitting smoking are also recognized for increasing HDL levels.
Deciphering Bad Cholesterol
On the other hand, Low-Density Lipoprotein (LDL) is often labeled as bad cholesterol. LDL is responsible for carrying cholesterol from the liver to different cells throughout the body. Excessive LDL cholesterol can accumulate on the walls of blood vessels, leading to plaque formation. This condition, known as atherosclerosis, narrows and hardens the arteries, significantly increasing the risk of heart attack and stroke.
Research emphasizes the dangers associated with high levels of LDL. For example, the Framingham Heart Study, a long-term cardiovascular study, highlighted that individuals with elevated LDL levels had a markedly increased risk of heart health issues compared to those with lower levels. To manage LDL cholesterol, moderating saturated and trans fats in your diet is crucial. These fats are prevalent in red meats, full-fat dairy products, and many processed foods.
Further strategies include increasing dietary fiber from sources like whole grains, beans, and vegetables. Consuming plant sterols and stanols found in certain fortified foods can also aid in lowering LDL levels. Statin medications, prescribed by healthcare professionals, are another effective measure for individuals struggling to control their cholesterol through lifestyle changes alone.
Blood Cholesterol Testing and Recommendations
Monitoring your cholesterol levels is crucial. A detailed cholesterol test, referred to as a lipid panel, evaluates your total cholesterol, covering HDL, LDL, and triglyceride levels. The American Heart Association advises that adults over 20 should have their cholesterol and additional conventional risk factors assessed every four to six years.
Los niveles óptimos de colesterol pueden diferir según los factores de riesgo individuales, pero en general, un nivel de HDL de 60 mg/dL o más se considera beneficioso para la prevención de enfermedades cardíacas. Por otro lado, un nivel de LDL inferior a 100 mg/dL se considera ideal para la salud del corazón, aunque los objetivos pueden variar para personas con condiciones de salud preexistentes.
