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Preventive behaviors can reduce the risk for cardiovascular disease and stroke.

Preventive behaviors can reduce the risk for cardiovascular disease and stroke. noncommunicable disease cardiovascular disease hypertension arteriosclerosis. atherosclerosis angina pectoris arrhythmias stroke. Cardiovascular Disease.

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Preventive behaviors can reduce the risk for cardiovascular disease and stroke.

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  1. Preventive behaviors can reduce the risk for cardiovascular disease and stroke.

  2. noncommunicable disease • cardiovascular disease • hypertension • arteriosclerosis • atherosclerosis • angina pectoris • arrhythmias • stroke

  3. Cardiovascular Disease • The heart, blood, and blood vessels are at risk for a number of potentially serious diseases.

  4. Cardiovascular Disease • Noncommunicable diseasesare not infectious. Noncommunicable disease A disease that is not transmitted by another person, a vector, or the environment

  5. Cardiovascular Disease • One of the most common noncommunicable diseases is cardiovascular disease. Cardiovascular disease A disease that affects the heart or blood vessels

  6. Types of Cardiovascular Disease • As you read about these cardiovascular diseases, think about how each one is caused and what you can do to reduce your risk. • There are many different types of CVDs.

  7. Hypertension • Hypertension can damage the heart, blood vessels, and other body organs if it continues over a long period of time. Hypertension High blood pressure

  8. Hypertension • Because hypertension often has no symptoms in its early stages, it is sometimes called a “silent killer.” • To treat hypertension, patients should manage their weight, get adequate physical activity, and eat a nutritious diet.

  9. Atherosclerosis • If you smoke, have high blood pressure, or have high cholesterol levels, you may have atherosclerosis. Atherosclerosis A disease characterized by the accumulation of plaque on artery walls

  10. Atherosclerosis • People with atherosclerosis have a condition called arteriosclerosis, which can cause a heart attack or stroke. Arteriosclerosis Hardened arteries with reduced elasticity

  11. Atherosclerosis • The artery on the far left is healthy, while the other arteries show evidence of atherosclerosis.

  12. Diseases of the Heart • When the blood supply to the heart is restricted, the heart does not get the oxygen it needs, and a heart attack can occur. • The result can be heart muscle damage or even sudden death due to cardiac arrest.

  13. Diseases of the Heart • Heart attack occurs due to insufficient blood supply to the heart. • Cardiac arrest, in which the heart stops beating in a rhythmic way, occurs due to an electrical problem with the heart.

  14. Diseases of the Heart • In many cases, sudden cardiac arrest can be reversed if CPR or electric shock using a defibrillator is applied.

  15. Diseases of the Heart Diagnostic Tools Produces graph of heart’s electrical activity Electrocardiogram Magnetic Resonance Imaging Produces images that show heart damage Detects vessel obstructions with dye and x-rays Angiography Creates heart images that show artery blockage CT Scan

  16. Diseases of the Heart Treatment Options Healthy vein from another area implanted to create detour around blocked artery. Coronary Bypass Balloon inserted inside artery then inflated, deflated, and removed. Angioplasty Chest implant sends electrical impulses to heart to make it beat regularly. Pacemaker Laser fiber inserted into blocked artery vaporizes the blockage, restoring blood flow. Laser Intervention

  17. Angina Pectoris • Angina pectoris, which usually lasts from a few seconds to minutes, is usually caused by atherosclerosis and should be taken very seriously. Angina pectoris Chest pain that results when the heart does not get enough oxygen

  18. Arrhythmias • Arrhythmias happen when the heart skips a beat or beats very fast or very slowly. Arrhythmias Irregular heartbeats

  19. Arrhythmias • In one type of arrhythmia, called ventricular fibrillation, the electrical impulses that regulateheart rhythm become rapid or irregular. • This is the most common cause of cardiac arrest.

  20. Heart Attack • A heart attack occurs when a reduced or blocked blood supply damages the heart muscle. • Many heart attacks are sudden and cause intense chest pain, but about 25 percent produce no symptoms.

  21. Heart Attack • Anyone who experiences the following warning signs of heart attack should call 911 immediately: Pressure, fullness, squeezing, or aching in chest area Pain spreading to arms, neck, jaw, abdomen, or back Chest discomfort, with shortness of breath, lightheaded feeling, sweating, nausea, or vomiting

  22. Congestive Heart Failure • This occurs when the heart gradually weakens and can no longer maintain its regular pumping rate and force.

  23. Congestive Heart Failure • Congestive heart failure cannot be cured, but it can improve through continuous treatment, such as medication and practicing healthy lifestyle behaviors.

  24. Stroke • Sometimes an artery supplying blood to the brain becomes blocked or bursts, resulting in astroke. Stroke An acute injury in which blood flow to the brain is interrupted

  25. Stroke • A stroke that occurs because of a burst blood vessel is called a cerebral hemorrhage. • Stroke can cause problems such as paralysis.

  26. Stroke Warning Signs of Stroke Severe headache Numbness on one side of the body Confusion Trouble walking Dizziness Trouble seeing out of one or both eyes

  27. What Teens Need to Know • CVD can begin during the teen years. • A teen with damaged blood vessels may not experience any symptoms until later in adulthood, but the danger is already there.  

  28. What Teens Need to Know CVD Risk Factors You Can Control Tobacco Use High Blood Pressure High Cholesterol Physical Inactivity Excess Weight Stress Alcohol and Drug Use

  29. Risk Factors Unavoidable Risk Factors Heredity Gender Age

  30. After You ReadReviewing Facts and Vocabulary • Define cardiovascular disease. • A disease that affects the heart or blood vessels

  31. After You ReadReviewing Facts and Vocabulary • What can happen if hypertension continues over a long period? • It can damage the heart, blood vessels, and other body organs.

  32. After You ReadReviewing Facts and Vocabulary • What is a stroke? • An acute injury in which blood flow to the brain is interrupted

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