Showing posts with label Heart Attack. Show all posts
Showing posts with label Heart Attack. Show all posts

Risk

Risk of heart attack

You can reduce your risk of having a heart attack—even if you already have coronary heart disease (CHD) or have had a previous heart attack. The key is to take steps to prevent or control your heart disease risk factors.
http://www.nhlbi.nih.gov/health/dci/images/heart_interior.gif

Six Key Steps To Reduce Heart Attack Risk

Taking these steps will reduce your risk of having a heart attack:

  1. Stop smoking
  2. Lower high blood pressure
  3. Reduce high blood cholesterol
  4. Aim for a healthy weight
  5. Be physically active each day
  6. Manage diabetes

Causes

Causes of heart attack

Over time, cholesterol buildup can occur in these blood vessels in the form of plaque. This narrows the artery and can restrict the amount of blood that can flow through it. If the artery becomes too narrow, it cannot supply enough blood to the heart muscle when it becomes stressed. Just like arm muscles that begin to hurt if you lift too much, or legs that ache when you run too fast; the heart muscle will ache if it doesn't get adequate blood supply. This ache is called angina.

Picture of Heart Attack (Myocardial Infarction)

If the plaque ruptures, a small blood clot can form within the blood vessel and acutely block the blood flow. When that part of the heart loses its blood supply completely, the muscle dies. This is called a heart attack, or an MI - a myocardial infarction (myo=muscle +cardial=heart; infarction=death due to lack of oxygen).

What is heart attack

A heart attack occurs when blood flow to a section of heart muscle becomes blocked. If the flow of blood isn’t restored quickly, the section of heart muscle becomes damaged from lack of oxygen and begins to die.

Heart attack is a leading killer of both men and women in the United States. But fortunately, today there are excellent treatments for heart attack that can save lives and prevent disabilities. Treatment is most effective when started within 1 hour of the beginning of symptoms. If you think you or someone you’re with is having a heart attack, call 9–1–1 right away.


Heart With Muscle Damage and a Blocked Artery

Figure A shows an overview of the heart and coronary artery.  Figure B shows a cross-section of the coronary artery with plaque buildup and a blood clot.

Figure A is an overview of a heart and coronary artery showing damage (dead heart muscle) caused by a heart attack. Figure B is a cross-section of the coronary artery with plaque buildup and a blood clot.

During a heart attack, if the blockage in the coronary artery isn’t treated quickly, the heart muscle will begin to die and be replaced by scar tissue. This heart damage may not be obvious, or it may cause severe or long-lasting problems.

Eating for a Healthy Heart

Nutrition and Diet to Help Prevent Heart Disease

Recent studies have suggested that eating a heart-healthy diet can cut the risk of developing heart disease or stroke by 80%. Considering that heart disease is still the number one killer of both men and women in the United States, this is news worth considering!

Weight control and exercise are the first steps to a healthy heart, but there are additional ways to boost the body’s immunity to heart disease. Take a closer look at how specific food choices impact our ability to help manage or prevent heart disease and high blood pressure— two of the biggest health challenges we face today.

Healthy heart diet:

While age and genetics play a role, doctors have identified six controllable risk factors for heart disease: high blood pressure, high cholesterol, diabetes, smoking, physical inactivity, and obesity. The first steps in preventing heart disease are to quit smoking and incorporate exercise into your life. The rest of your heart healthy plan can focus on your diet what you eat, and what you don’t eat.

Coronary heart disease is caused by blockages in the arteries that supply blood to the heart. When the blood supply is obstructed, the heart muscle becomes deprived of oxygen and essential nutrients needed to function properly, which can result in angina (chest pains) or a heart attack. The primary substances responsible for narrowing of the arteries are cholesterol and fatty deposits making dietary cholesterol and saturated fat the two major dietary culprits that affect your heart health,

In order to protect your heart, certain foods should be drastically reduced or eliminated from your diet, while increasing foods that support cardiovascular health.

 
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