High Cholesterol
Blog post description.
6/7/20263 min read
High cholesterol is a condition in which there is too much cholesterol circulating in the blood, particularly in the form of low-density lipoprotein (LDL) cholesterol. Over time, excess cholesterol can build up in the walls of arteries, forming plaques that narrow and harden the blood vessels. This process increases the risk of Coronary artery disease, Heart attack, and Stroke.
Cholesterol is a waxy, fat-like substance that the body needs to:
Build cell membranes
Produce hormones such as estrogen and testosterone
Make vitamin D
Produce bile acids that help digest fats
Your body makes most of the cholesterol it needs in the liver, and the rest comes from animal-based foods.
Types of cholesterol
1. LDL (Low-Density Lipoprotein) – "Bad" cholesterol
Carries cholesterol from the liver to body tissues.
High LDL levels contribute to plaque buildup in arteries.
Lower LDL levels are generally associated with lower cardiovascular risk.
2. HDL (High-Density Lipoprotein) – "Good" cholesterol
Carries excess cholesterol back to the liver for removal.
Higher HDL levels are generally protective, although overall cardiovascular risk depends on multiple factors.
3. Triglycerides
A different type of blood fat.
High levels often occur with obesity, diabetes, excessive alcohol intake, or diets high in refined carbohydrates.
Elevated triglycerides also increase cardiovascular risk and, when very high, can increase the risk of Acute pancreatitis.
Causes of high cholesterol
High cholesterol can result from a combination of genetics and lifestyle.
Lifestyle factors
Diet high in saturated fats and trans fats
Excess body weight or obesity
Physical inactivity
Smoking
Excessive alcohol consumption
Medical conditions
Type 2 diabetes
Hypothyroidism
Chronic kidney disease
Certain liver diseases
Genetics
Some people inherit Familial hypercholesterolemia, a condition that causes very high LDL cholesterol from birth and greatly increases the risk of early cardiovascular disease.
Risk factors
You are more likely to develop high cholesterol if you:
Eat an unhealthy diet
Are overweight or obese
Exercise infrequently
Smoke
Have diabetes
Have high blood pressure
Have a family history of high cholesterol or early heart disease
Are older (risk tends to increase with age)
Symptoms
High cholesterol usually does not cause symptoms. Most people feel completely well until complications develop.
This is why regular blood tests are important.
Rarely, people with inherited cholesterol disorders may develop:
Yellowish cholesterol deposits under the skin (xanthomas)
Cholesterol deposits around the eyes (xanthelasma)
A gray or white ring around the cornea at a young age (corneal arcus)
Diagnosis
High cholesterol is diagnosed with a lipid panel, which measures:
Total cholesterol
LDL cholesterol
HDL cholesterol
Triglycerides
Your healthcare professional interprets these results in the context of your age, medical history, blood pressure, diabetes status, smoking, and overall cardiovascular risk rather than relying on a single number.
Complications
Untreated high cholesterol can lead to:
Atherosclerosis
Coronary artery disease
Heart attack
Stroke
Peripheral artery disease
Treatment
1. Lifestyle changes
These are recommended for almost everyone with high cholesterol:
Eat more vegetables, fruits, whole grains, legumes, and nuts.
Choose lean proteins such as fish and skinless poultry.
Reduce saturated fats (fatty meats, butter, full-fat dairy).
Avoid trans fats.
Increase soluble fiber (oats, beans, apples).
Exercise regularly (at least 150 minutes of moderate activity per week for most adults).
Maintain a healthy weight.
Stop smoking.
Limit alcohol intake.
2. Medications
If lifestyle changes are not enough or your cardiovascular risk is high, your healthcare professional may prescribe medications such as:
Atorvastatin
Rosuvastatin
Simvastatin
Ezetimibe
Evolocumab
Alirocumab
The choice of medication depends on your LDL level, overall cardiovascular risk, other medical conditions, and tolerance of treatment.
Prevention
You can lower your risk by:
Eating a heart-healthy diet
Exercising regularly
Maintaining a healthy weight
Avoiding smoking
Managing diabetes and blood pressure
Having cholesterol checked at intervals recommended by your healthcare professional
Key points
High cholesterol is a major modifiable risk factor for cardiovascular disease.
It usually has no symptoms, so blood testing is essential.
LDL ("bad") cholesterol promotes plaque formation, while HDL ("good") cholesterol helps remove excess cholesterol.
Healthy lifestyle habits are the foundation of treatment, and medications can substantially reduce the risk of heart attack and stroke when indicated.
Early detection and appropriate treatment can significantly reduce the likelihood of serious cardiovascular complications.
The above content is generated by AI