Understanding Heart Disease

1
Understanding Heart Disease

• In this lesson, you will Learn About
• Different types of heart disease.
• How heart disease is treated.
• What you can do to reduce your risk for
  developing heart disease.

2
Understanding Heart Disease

• The Vocabulary terms in this lesson are
• Arteriosclerosis.
• Atherosclerosis.
• Heart attack.
• Hypertension.
• Stroke.
• Angioplasty.

3
Heart Disease
Heart disease is any condition that reduces the
strength or functioning of the heart and blood
vessels. Heart disease kills more American
adults than any other cause of death. A high-fat
diet, lack of physical activity, and genetic
factors may all contribute to the development of
heart disease.
4
Types of Heart Disease

• Conditions that affect the arteries are called
  arterial diseases.
• Arteriosclerosis is a group of disorders that
  causes a thickening and hardening of the
  arteries.
• Atherosclerosis is a condition that occurs when
  fatty substances build up on the inner lining of
  arteries.

Healthy coronary artery
Coronary artery with atherosclerosis
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Types of Heart Disease (contd.)

• Because arterial diseases slow blood flow to the
  heart, they increase the risk of a heart attack.
  During a heart attack, a coronary artery becomes
  blocked, usually by a blood clot. Because the
  blockage prevents blood and oxygen from reaching
  the heart and muscle tissue, the tissue dies.

Coronary arteries
Atherosclerosis
Coronary arteries
Blood clot
Area of tissue death
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Related Disorders and Conditions
Hypertension is a condition in which blood
pressure stays at a level that is higher than
normal. Arterial diseases dont just affect the
heart. They can also damage the brain. A stroke
is a serious condition that occurs when an artery
of the brain breaks or becomes blocked. Strokes
are the third leading cause of death in the
United States.
7
What Doctors Can Do

• Treatment for heart disease depends on the
  persons age, the type of heart disease, and the
  extent of the problem.
• Possible treatments include the following
• Angioplasty
• Medication
• Pacemaker
• Bypass surgery
• Heart transplant

8
What You Can Do

• Making healthful choices now can decrease your
  risk of developing heart disease later.
• Follow these tips to keep your heart healthy
• Participate in regular physical activity.
• Maintain a healthy weight.
• Manage stress.
• Avoid using tobacco.

9
Reviewing Terms and Facts

1. Define the terms arteriosclerosis and
   atherosclerosis.

Arteriosclerosis is a group of disorders that
causes a thickening and hardening of the
arteries. Atherosclerosis, a form of
arteriosclerosis, is a condition that occurs when
fatty substances build up on the inner lining of
arteries.
10
Reviewing Terms and Facts

1. What is a stroke?

A stroke is a serious condition that occurs when
an artery of the brain breaks or becomes blocked.
11
Thinking Critically

1. Why do you think heart disease is the number one
   killer in the United Sates?