Cholesterol: An Overview
Cholesterol, a waxy substance found in your blood, is essential for building cells. However, too much can increase heart disease risk. It's carried through the bloodstream by lipoproteins.
Good vs Bad Cholesterol
HDL (high-density lipoprotein) is 'good' cholesterol, removing excess cholesterol and taking it back to the liver. LDL (low-density lipoprotein) is 'bad' cholesterol, potentially leading to plaque buildup in arteries.
Cholesterol's Silent Growth
Cholesterol buildup is gradual and typically shows no symptoms. Over time, high levels can narrow arteries, leading to atherosclerosis, without any warning signs until serious blockage occurs.
Dietary Cholesterol Myths
Recent studies suggest dietary cholesterol impacts serum cholesterol levels less than once thought. Saturated fats and trans fats in the diet are now considered the main culprits for high cholesterol.
Genetics Influence Levels
Your genetic makeup can significantly impact cholesterol levels, with some inheriting conditions like familial hypercholesterolemia, which causes very high LDL cholesterol levels, regardless of lifestyle.
Cholesterol's Essential Roles
Cholesterol isn't just bad; it's vital for synthesizing vitamin D, certain hormones, and bile acids that help digest fat. It's a crucial component of cell membranes.
Improving Cholesterol Naturally
Lifestyle changes such as regular exercise, a healthy diet, and smoking cessation can improve cholesterol levels. Certain foods like oats, fish, and nuts are particularly beneficial for managing cholesterol.
What does HDL cholesterol do?
Builds plaque in arteries.
Takes excess to the liver.
Causes familial hypercholesterolemia.
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