Cardiac Health

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Breathing is the process of inhaling and exhaling air from the lungs. When a person inhales, his lungs expand and pull life-sustaining oxygen into the body. When a person exhales, the lungs contract, and a waste product called carbon dioxide is expelled from the body, notes WebMD.

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  • What are the symptoms of high blood pressure?

    Q: What are the symptoms of high blood pressure?

    A: The majority of those afflicted by high blood pressure, which is also called hypertension, experience no symptoms at all, even when blood pressure reaches dangerous levels. Those who do experience symptoms may have chest pain, fatigue, confusion, irregular heartbeat, difficulty breathing, dizzy spells, dull headaches and nosebleeds. Pounding in the ears, neck or chest may also occur, according to WebMD.
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  • How do you slow down your heart rate?

    Q: How do you slow down your heart rate?

    A: Regular moderate to vigorous athletic activity can lower a person's resting heart rate, according to WebMD. The best type of exercise for lowering heart rate is aerobic exercise, which strengthens the heart and lungs, increasing the body's use of oxygen. Popular aerobic exercises include brisk walking, jogging, cross-country skiing, swimming, biking and rowing.
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  • What is a heart tremor?

    Q: What is a heart tremor?

    A: According to the National Heart, Lung, and Blood Institute, a heart tremor, more commonly known as a heart murmur, is when the heart makes an abnormal sound during a physical exam. A murmur is often described by doctors as a whooshing or swishing sound. WebMD reports the majority of murmurs are considered innocent, and an abnormal murmur may be a sign the heart has a damaged valve or other abnormality.
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  • What causes an irregular heartbeat?

    Q: What causes an irregular heartbeat?

    A: There are a number causes of an irregular heartbeat, including eating disorders, bulimia nervosa, atrial fibrillation, thyrotoxicosis, mitral valve prolapse and heart problems, according to Right Diagnosis. Uncommon causes include sickle cell anemia, scleroderma and chronic fatigue syndrome.
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  • What is a heart murmur?

    Q: What is a heart murmur?

    A: A heart murmur is an unusual, extra or loud sound heard by a doctor when he listens to the heart with a stethoscope. Heart murmurs are categorized as innocent, such as sounds frequently heard in children, or abnormal, which can indicate an underlying problem, according to the National Heart, Lung, and Blood Institute.
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  • When would cardiac output be the greatest?

    Q: When would cardiac output be the greatest?

    A: According to WebMD, cardiac output is greatest during intense exercise and when a person is approximately in his 20s. The more intense the exercise, the more blood the body's muscle demand from the heart and, therefore, the cardiac output is normally greater than at rest.
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  • What is a health cholesterol level?

    Q: What is a health cholesterol level?

    A: A healthy serum cholesterol level is 200 milligrams per deciliter or below, according to Mayo Clinic. Readings of 200 to 239 mg/dL are considered borderline high, while readings of 240 mg/dL are classified as high. Keeping cholesterol levels within healthy limits reduces an individual's risk of developing heart disease.
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  • What causes a fast heart rate?

    Q: What causes a fast heart rate?

    A: According to the American Heart Association, a heart rate of over 100 beats per minute is also referred to as tachycardia and occurs when the heart's electrical signals interfere with the sinoatrial node that is responsible for maintaining a balanced heart rate. Rapid heart rates can be triggered by anxiety, caffeine consumption, excessive alcohol consumption and smoking.
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  • What is the immediate post-heart attack action that should be taken?

    Q: What is the immediate post-heart attack action that should be taken?

    A: To respond to a suspected heart attack, the National Institutes of Health recommends that someone call 911 or other local emergency number to summon medical help. A heart attack is a medical emergency.
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  • Can you reduce plaque in your arteries?

    Q: Can you reduce plaque in your arteries?

    A: According to The Dr. Oz Show, a person can reduce artery plaque if he stops consuming the foods that caused the plaque to develop and incorporates an abundance of heart-healthy foods into his diet. Foods high in saturated fats, trans fats and cholesterol, such as fast foods and processed meats, cause plaque buildup and should be eliminated. A heart-healthy diet is primarily plant based and contains little fat.
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  • How many people die of obesity each year?

    Q: How many people die of obesity each year?

    A: As of March 2014, the Centers for Disease Control and Prevention (CDC) estimates that 112,000 deaths in the United States are associated with obesity annually. It is important to note that as Americans focus on exercising and eating healthy, combined with the advancements in medical science and national promotions that support reducing obesity, this estimate is likely to fluctuate, according to the CDC.
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  • What causes a rapid heartbeat?

    Q: What causes a rapid heartbeat?

    A: A rapid heartbeat, also known as tachycardia, is caused by a number of factors, including exercise, anxiety or fear, a current or previous heart attack, blocked arteries, high blood pressure, thyroid disorders, substance abuse, stress and some medications and supplements, according to Mayo Clinic. Tachycardia can be normal or a symptom of a bigger problem.
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  • How is a pacemaker implanted?

    Q: How is a pacemaker implanted?

    A: During pacemaker implantation, a local anesthetic is given to numb the upper chest, and an incision is made, states Cleveland Clinic. The pacemaker leads are guided through a vein and into the heart, where they attach to the heart muscle. The other end of each lead connects to the pacemaker generator.
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  • How do I improve my cardiovascular system?

    Q: How do I improve my cardiovascular system?

    A: According to FitDay, improving the cardiovascular system can be done by cutting back on fats and sugars, eating healthy foods, exercising regularly and getting enough sleep. Good cardiovascular health is crucial for the body not just physically, but psychologically and emotionally as well.
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  • What is a heart stent?

    Q: What is a heart stent?

    A: A heart stent is a small tube used to treat narrowed arteries or strengthen weakened arteries, as defined by the National Heart, Lung and Blood Institute. Stent manufacturers use metal mesh or fabric to produce these tubes.
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  • Can you have a heart attack and not know it?

    Q: Can you have a heart attack and not know it?

    A: A person can have a heart attack and not know it because not all heart attacks produce recognizable symptoms, according to the American Heart Association. These are known as silent heart attacks.
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  • How do you lower blood pressure without medication?

    Q: How do you lower blood pressure without medication?

    A: To lower blood pressure without medication, a person should lose weight by exercising often and eating a healthy diet, avoid sodium and alcohol, quit smoking and minimize caffeine intake, notes Mayo Clinic. It is also important to make lifestyle changes that diminish the effects of stress on the body.
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  • How do you stop heart palpitations?

    Q: How do you stop heart palpitations?

    A: WebMD notes that heart palpitations can be treated by lowering stress and anxiety levels and by avoiding certain beverages, foods, stimulants and medications. In order to treat palpitations effectively, the cause first has to be determined so that the best treatment can be prescribed.
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  • What is the ideal pulse rate?

    Q: What is the ideal pulse rate?

    A: According to the Mayo Clinic, the ideal resting heart rate for a healthy adult is between 60 and 100 beats per minute. More athletic people have a more efficient heart and a lower heart rate, with some high-level athletes exhibiting a heart rate of 40 beats per minute.
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  • What are the signs of a heart attack?

    Q: What are the signs of a heart attack?

    A: The most characteristic symptom of a heart attack, according to the American Heart Association, is a severe, crushing pain in the chest that may radiate outward to the shoulders, arms and neck. Heart attacks can also cause the victim to feel short of breath or panicky and might induce dizziness and a cold, clammy sweat.
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  • What is aortic atherosclerosis?

    Q: What is aortic atherosclerosis?

    A: Aortic atherosclerosis is the hardening of the aortic artery that occurs when plaque, a substance made of cholesterol, fats and cellular waste, builds up inside the arteries, partially or completely blocking the flow of blood. According to the American Heart Association, atherosclerosis is a progressive disease that may begin in childhood and often does not become a real danger until individuals reach their 50s or 60s.
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