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1. www.mayoclinic.org › diseases-conditions › heart-attackHeart attack-Heart attack - Symptoms & causes - Mayo Clinic

   www.mayoclinic.org › diseases-conditions › heart-attack

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   Oct 9, 2023 · A heart attack occurs when the flow of blood to the heart is severely reduced or blocked. The blockage is usually due to a buildup of fat, cholesterol and other substances in the heart (coronary) arteries.

2. www.healthline.com › health › heart-attackHeart Attack: Symptoms, Causes, Diagnosis, Prevention, More

   www.healthline.com › health › heart-attack

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   Feb 15, 2022 · This article will take a closer look at the causes, symptoms, and risk factors of a heart attack, as well as how a heart attack is diagnosed and treated.

3. www.webmd.com › heart-disease › heart-disease-heart-attacksHeart Attack: Causes, Symptoms, and Treatment - WebMD

   www.webmd.com › heart-disease › heart-disease-heart-attacks

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   Sep 21, 2023 · A heart attack happens when something blocks the blood flow to your heart so it can’t get the oxygen it needs. It’s a medical emergency. Call 911 right away at the first sign of any symptoms....

4. www.healthdirect.gov.au › heart-attackHeart attack - symptoms, signs, complications and treatments -...

   www.healthdirect.gov.au › heart-attack

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   A heart attack occurs when the blood supply to your heart is blocked and your heart muscle can’t get enough oxygen. Common symptoms of a heart attack are chest pain, feeling breathless and sweating.

5. www.nhlbi.nih.gov › health › heart-attackHeart Attack What Is a Heart Attack? - NHLBI, NIH

   www.nhlbi.nih.gov › health › heart-attack

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   Mar 24, 2022 · A heart attack is a life-threatening medical emergency that requires immediate treatment. Learn about prevention, symptoms, causes, and treatments for heart attacks.

6. www.heart.org › en › health-topicsWhat is a Heart Attack? - American Heart Association

   www.heart.org › en › health-topics

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   Dec 2, 2022 · A heart attack occurs when the blood flow that brings oxygen to the heart muscle is severely reduced or cut off completely. View an animation of blood flow between the heart and lungs.

7. www.heart.org › en › health-topicsHeart Attack | American Heart Association

   www.heart.org › en › health-topics

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   What is a Heart Attack? A heart attack is scary. If you’ve had one, or are close to someone who has, you’re not alone. Many people survive a heart attack and go on to enjoy productive lives. Learn more about heart attacks. Warning Signs of a Heart Attack. Heart Attack Treatment. Life After a Heart Attack. The First 90 Days After a Heart Attack.

8. my.clevelandclinic.org › health › diseasesHeart Attack: Symptoms, Causes & Treatment - Cleveland Clinic

   my.clevelandclinic.org › health › diseases

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   Feb 15, 2024 · A heart attack is a life-threatening emergency. If you think you or someone you’re with is having a heart attack, call 911 (or your local emergency services phone number). Time is critical in treating a heart attack. A delay of even a few minutes can result in permanent heart damage or death.

9. www.nhs.uk › conditions › heart-attackHeart attack - NHS

   www.nhs.uk › conditions › heart-attack

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   A heart attack (myocardial infarction or MI) is a serious medical emergency in which the supply of blood to the heart is suddenly blocked, usually by a blood clot.

10. www.bhf.org.uk › informationsupport › conditionsHeart attack - BHF

    www.bhf.org.uk › informationsupport › conditions

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    Learn about the causes of a heart attack, how a heart attack is diagnosed, treated and how to take care of yourself at home and in the hospital.