Healthy Lifestyle Not Always Enough to Lower High Cholesterol, Doctor Explains

Even with a healthy diet, regular exercise, and a normal weight, high cholesterol can persist, a doctor explains. The impact of lifestyle changes on cholesterol levels varies greatly among individuals. While one person might see a significant drop in "bad" LDL cholesterol, another may experience only minor changes.

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One person's low-density lipoprotein (LDL), also known as "bad" cholesterol, may decrease significantly after dietary changes, while another's may change only slightly. This depends on the initial cholesterol level, genetic characteristics, age, metabolism, and other health conditions.

This variation is attributed to a combination of factors, including initial cholesterol levels, genetic predispositions, age, metabolic rate, and other health conditions. Therefore, elevated cholesterol readings do not automatically indicate an unhealthy lifestyle or improper practices.

High cholesterol is often asymptomatic, earning it the moniker "silent killer." Individuals may feel perfectly healthy while atherogenic lipoprotein particles gradually accumulate in their blood vessel walls over many years. Symptoms typically arise not from high cholesterol itself, but from its consequences, such as narrowed arteries in the heart, brain, or legs, potentially leading to angina, heart attack, stroke, or intermittent claudication.

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This process usually happens slowly – for many years or even decades. Symptoms usually arise not from high cholesterol itself, but from its consequences, for example, narrowed arteries in the heart, brain, or legs.

Beyond diet and exercise, genetics plays a crucial role. Some individuals are genetically predisposed to produce more cholesterol or clear LDL particles from their blood more slowly. This can be due to a combination of genes or, in rarer cases, familial hypercholesterolemia, a hereditary condition causing very high LDL cholesterol levels from childhood or adolescence. Cholesterol levels can also change with age, often increasing in older adults, and women may experience more pronounced changes after menopause. Additionally, other health conditions like hypothyroidism, poorly controlled diabetes, obesity, metabolic syndrome, and chronic kidney disease can contribute to elevated cholesterol.

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Genetics plays a significant role. Some people's bodies, due to inherited characteristics, tend to produce more cholesterol or remove LDL particles from the blood more slowly.