8th grade ch 3 sec 4 cardiovascular health

Ch. 3 Sec. 4

Cardiovascular Health

Cardiovascular Disease atherosclerosis

artery wall thickens due to buildup of fatty materials (cholesterol)

reduces blood flow in arteries blood pressure increases

could lead to heart attack

What kind of diet can lead to atherosclerosis?

ATHEROSCLEROSIS

when blood flow to part of heart is blocked

What Are the Signs and Symptoms of a Heart Attack? Chest discomfort.

involves discomfort in the center of the chest that lasts for more than a few minutes, or goes away and comes back.

can feel like uncomfortable pressure, squeezing, fullness, or pain.

can sometimes feel like indigestion or heartburn.

Discomfort in other areas of the upper body. pain, discomfort, or numbness in one or both arms, the back,

neck, jaw, or stomach.

Shortness of breath. Often comes along with chest discomfort. Can also occur before chest discomfort.

Other symptoms. breaking out in a cold sweat having nausea and vomiting feeling light-headed or dizzy.

Heart contractions

generate blood

pressure, the fluid pressure

that blood exerts against vessel walls.

hypertension aka high blood pressure usually > 120/80 makes heart work harder damages walls of blood vessels “silent killer” b/c no obvious

symptoms

Hypertension Treatments:

1. Exercise

2. Eat healthy

3. Limit sodium

4. Medication

How to Keep Your Cardiovascular System Healthy

Exercise regularly Eat a balanced diet-

low in fat, cholesterol, sodium Avoid smoking