1. Chapter 17, Section 4 Cardiovascular Health Tuesday, March 23, 2010 Pages 556-560

2. Objective Understand behaviors that can help maintain cardiovascular health.

3. Vocabulary Words Atherosclerosis Cholesterol Heart attack Hypertension

4. Cardiovascular Health Cardiovascular disease is the leading cause of death in the United States. –Atherosclerosis is a condition in which an artery wall thickens due to the buildup of a fatty material called cholesterol. –Atherosclerosis restricts the flow of blood in the arteries.

5. Atherosclerosis Atherosclerosis is a condition in which an artery wall thickens due to the buildup of a fatty material called cholesterol. Development of atherosclerosis in the coronary arteries means that your heart will receive less blood.

6. Atherosclerosis -- cont’d Blocked coronary arteries may lead to a heart attack. –Cells die in the part of the heart that does not receive blood. –This permanently damages the heart.

7. Treatment for Atherosclerosis Low-fat diet Moderate exercise program Medication lowering cholesterol and fats People with several atherosclerosis may need surgery to unclog blocked arteries

8. Hypertension Hypertension is also known as high blood pressure. Hypertension makes the heart work harder. The walls of the blood vessels may be damaged over time.

9. Hypertension -- cont’d It is also known as the “silent-killer” because people with this disease has no obvious symptoms to warn them. Hypertension is similar to atherosclerosis. –As arteries narrow due to atherosclerosis, the blood pressure increases.

10. Heart Attack Candidates People who do not get regular exercise. –Exercise strengthens the heart muscle. People who smoke. –Smokers are twice as likely to experience a heart attack. –Smoking leads to atherosclerosis. People who do not eat healthy diets. –High fat, high cholesterol, high sodium diets lead to atherosclerosis.

11. Homework Workbook 17.4 (3/25) Vocabulary quiz 17.4 (3/25)