Heart attacks occur when the muscle and tissue in the heart do not get enough oxygen to work. If not treated, it could lead to death in twenty minutes. Having too much cholesterol and smoking tobacco could block the blood vessels, so that heart wouldn't get enough oxygen and then cause a heart attack.  There are several symptoms and signs of heart attack. First, it feels like something grabs the heart and causes coughing and hard breathing. Also, the seriousness of pain is different by sex. Usually female gets less pain than male does.  There are many different diagnosis and tests for heart attacks. ECG and blood test are most common and fastest way to get the result of heart attack or disease. Then, to get more specific image of both interior and exterior of heart, doctors are using some radioactive machines like X-ray, CT scan or MRI.  Moreover, treatment suggest one of the most important thing to do after the operation or surgery. Because, heart attack could relapse within a few or more years, so that by providing medications to protect patients from any heart disease or attack in the future. 
Heart attacks usually come to people between the ages of forty to sixty five, because most of adults in those age are not having any activities like teenagers have. Therefore, high cholesterol food that they eat will directly build a wall in their blood vessels and cause heart attack. Heart attack occurs when the tissue in the heart have not enough oxygen or no oxygen to make the heart beat or throb. Usually a heart attack happens because of too much cholesterol in the tissue, blood, or fat. Every person has cholesterol in their body, but having too much cholesterol could cause a problem. Because, cholesterol can block the blood vessel, so that blood, that carry oxygen, cannot enter into the heart and this called heart attack. When oxygen supply stops the muscle in the heart and also it stops its activity or beat. For example, heart attack is similar to doing too much push-ups and sit-ups.The muscles in the chest, shoulder and abdomen start getting hurt and when muscle in the heart try to work without getting enough oxygen, the heart starts getting hurt.  Other than cholesterol blocks the blood vessel, there are many causes of a heart attack. For example, if there is any family history of heart attack or disease, then it would increase the possibility of causing a heart attack. Also, high blood pressure, is one of the big parts of causing heart attack, which is more than 120/80. Moreover, smoking cigarette or tobacco could cause a heart attack. Smoking cigarette is always a bad habit, because tobacco contains thousands of bad chemical matters. For example, tar, nicotine, carbon monoxide and other carcinogenic matters, some of those chemicals are used for making weapons. 
To know or learn about signs and symptoms of a heart attack is very important. Because, heart attacks happen really quickly and it does not take too much time to make people die, so people have to take action before it goes more serious. Chest pain is the first and the main symptom of a heart attack. There are many feelings of heart attack pain, you would feel like something weighty hang on the chest, so that your chest will feel like cramped. In addition, you would have indigestion that pains in your chest by having a problem in absorbing food. Pain will spread not only in your chest, but also will spread all over your body. You would start coughing, sweating, swooning, throwing up and gasping. However, there are some exceptions in feeling chest pain and other symptoms. Usually, old people, women, and diabetics wouldn't feel the pain as normal people do. Sometimes people could die without any signs or symptoms and it called a silent heart attack; people usually die with a silent heart attack during the night when they are sleeping.  Symptoms of a heart attack are different from sex (male or female). Usually men with ages of forty to sixty five would feel pains the most, however women in every age would feel less pain. Symptoms of heart attack for women are a little different than symptoms of men. Women will have unpleasantly sticky skin, stomachache that feels like its burning inside and will have giddiness.
There are many tests and diagnosis for heart attack. Tests and diagnosis depend on the seriousness of the disease. Electrocardiogram and blood tests are the two most common tests to determine the heart attack. 
Electrocardiogram is most common and accurate test for heart disease. It is also known as ECG. It is the test that write the account or data of what is happening in the heart by putting electrical tape on the body. ECG checks the heart's activity and its muscle. Because, if the muscle doesn't work inside of the heart, then ECG wouldn't show the result, so that doctors can prepare for the operation. 
Blood test is the most common test for examine the diseases. Blood tests for heart disease or heart attack is to find out a loophole that could hurt the heart by not providing enough heart enzymes and blood. 
X-rays are used for examine inside our body, so that doctors can find out any problem or disease that cannot be examine outside of our body. X-ray gives doctor an image of chest or heart, so that doctors can determine the seriousness of the disease. It will take no longer than 15 minutes, but patients have to take all clothes and accessories, because those matters could obstruct the radiation. 
There are two types of nuclear scan for heart: CT scan and MRI. Nuclear scan is more accurate than any other tests and diagnosis. Before the tests, doctors will put patients a hot material into their veins, so that doctors can see the material's movement in patients heart.  CT scan is also known as computed tomography. CT scanner will image all around patient's body and it has more power radiology than X-ray has. Also, it takes no longer than 45 seconds. MRI, magnetic resonance imaging, is similar to CT scan. CT scan is based on X-rays, but MRI is based on magnets and radiowaves, which could provide doctors a detail image of disease. 
People who had heart attack cannot leave the hospital until the medical treatment or cure team say okay to leave. Because, heart attack or disease can be relapse, so that medical cure team is checking and testing the heart attack patients over three months. Heart disease is one of the most important disease that need to be treated after the operation. Because, if it outbreak again then it would lead a patient to die in few minutes. There are few steps of treatment: first, medical team will test patients by ECG machine, which will check the pulse rate, then medical team will provide patients oxygen to exercise or practice the heart muscle and tissue and the last step is plant the intravenous line that medical team could put medicine in patients bloodstream.  Moreover, therapy and medicines are part of treatment. Therapy is not like medicine, it cannot be given to every patients, because it could be dangerous to someone who had operations in head or brain and pregnant women. Not only medicines that go into the intravenous line, but medicines that stop the blood clot, lessen the cholesterol in the body and deter the cause of high blood pressure. 
- About Heart Attack MayoClinic. By unknown staff.
- Causes of Heart Attack New York Times. Multiple Authors.
- Heart Attack Medicinenet.com. Unknown Authors. Articles from many doctors.
- Causes of Heart Attack Caring.com. Multiple articles from multiple authors.
- Cause and Effect Serendip. By Silvius, Laura.
- Heart Disease WebMed. Better information. Better health. Unknown author.
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