Download - 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