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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  • 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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  • 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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  • What Is an Anterior Infarction?

    Q: What Is an Anterior Infarction?

    A: LearntheHeart.com states that an anterior myocardial infarction is when the anterior, or front, wall of the heart experiences injury due to lack of blood flow. An artery known as the left anterior descending coronary artery usually supplies blood flow to this area of the heart. An anterior myocardial infarction generally indicates that there is a blockage in this artery.
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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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  • 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 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 Causes High Blood Pressure?

    Q: What Causes High Blood Pressure?

    A: According to Mayo Clinic, primary hypertension, or high blood pressure, has no identifiable causes and develops over time. Medical conditions such as chronic kidney disease, thyroid disease, sleep apnea, congenital blood defects and adrenal gland tumors are causes of secondary high blood pressure. Other causes include taking oral contraceptives, using cocaine or amphetamines and abusing alcohol.
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  • How Is the Heart Rate Regulated?

    Q: How Is the Heart Rate Regulated?

    A: Heart rate is regulated by homeostasis, a process by which the body regulates its internal environment during its interaction with the outside environment. A prime example of another variable regulated by homeostasis is body temperature. When the environment is too cold, the brain triggers muscle contractions to raise internal temperature.
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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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  • 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 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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  • 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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  • Which Arm Goes Numb During a Heart Attack?

    Q: Which Arm Goes Numb During a Heart Attack?

    A: Either arm can go numb during a heart attack, but it is more frequently the left arm. Numbness alone is not a sign of a heart attack and can be caused by a number of other conditions.
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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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  • 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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  • 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 Are Signs of Heart Disease in Women?

    Q: What Are Signs of Heart Disease in Women?

    A: According to WebMD, common heart disease symptoms in women are chest discomfort, pain in the arms, neck or jaw, fatigue, sweating, stomach pain, nausea, lightheadedness and shortness of breath. Additional symptoms, noted by Cleveland Clinic, are anxiety, indigestion and sleep disturbances.
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  • How Do You Prevent Heart Disease?

    Q: How Do You Prevent Heart Disease?

    A: Anyone of any age can prevent heart disease by adopting a healthy eating and diet plan early, according to the American Heart Association. That means choosing foods that are low in cholesterol, salt, sugar and bad fats, such as saturated fats and trans fats. Eating a wide variety of fruits and vegetables along with good protein sources, such as nuts and lean meats, is also important.
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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 Can You Lower Cholesterol Naturally?

    Q: How Can You Lower Cholesterol Naturally?

    A: Managing cholesterol without or in addition to the use of medication is best done with a combination of diet and exercise. According to WebMD, daily exercise reduces LDL, or "bad" cholesterol, and increases HDL, or "good" cholesterol, by up to 10 percent. Switching to a diet that's low in cholesterol reduces the amount of cholesterol that's consumed, but might not have a measurable effect, as the body produces cholesterol itself.
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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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