Cholesterol levels

Definition

Cholesterol levels refer to the amount of cholesterol present in the blood, which includes low-density lipoprotein (LDL), high-density lipoprotein (HDL), and triglycerides. These levels are crucial indicators of cardiovascular health and can be influenced by diet, lifestyle, and genetics.

5 Must Know Facts For Your Next Test

1. High LDL cholesterol is often termed 'bad' cholesterol because it can lead to plaque buildup in arteries.
2. HDL cholesterol is considered 'good' as it helps remove other forms of cholesterol from the bloodstream.
3. A healthy diet rich in fiber and low in saturated fats can help manage cholesterol levels.
4. Regular physical activity can increase HDL cholesterol and lower LDL cholesterol.
5. Medications such as statins may be prescribed to help control high cholesterol levels when lifestyle changes are insufficient.

Review Questions

• What are the differences between LDL and HDL cholesterol?
• How can diet impact your cholesterol levels?
• Name two lifestyle changes that can positively influence your HDL cholesterol.

Related terms

atherosclerosis:

The buildup of fats, cholesterol, and other substances in and on artery walls, which can restrict blood flow.

triglycerides:

A type of fat found in your blood that your body uses for energy; high levels can increase the risk of heart disease.

statins: A class of drugs used to lower blood cholesterol levels by inhibiting an enzyme involved in its production.