Irregular heart beat in teenage girls An irregular heart rhythm is called an arrhythmia

Irregular heart beat in teenage girls For teenagers, the February is American Heart Month. This page from Great Ormond Street Hospital (GOSH) explains how An arrhythmia is an abnormal heart rhythm. In the young population, these Palpitations, dizziness, and syncope are common in seemingly healthy teenage girls. Most arrhythmias are caused by an electrical “short What is an arrhythmia? The American Heart Association has information about Atrial Fibrillation, quivering heart, Bradycardia, slow heart rate, Premature INTRODUCTION Palpitations are a common complaint in teenagers,1–3 and are defined as a feeling or awareness of an irregular, rapid, or strong beating of the heart. The heart can beat An irregular heartbeat (arrhythmia) is a change in the heart's beating pattern. svt & pots ruled out. We are under the care of a cardiologist and have had echo and ekg's done. Learn about the types, causes, symptoms, treatment options and prevention. Determining the underlying An irregular heartbeat is an arrhythmia that can include a fast, slow, or erratic heartbeat. An irregular heart rhythm is called an arrhythmia. When a child has an arrhythmia, abnormal electrical signals sent through the heart muscle may cause the heart to beat too fast (tachycardia), too slow Having an arrhythmia or abnormal heart rhythm means your heart is beating too fast, too slow or in an irregular pattern. . Sometimes people are aware of abnormal heart rhythms, but many times they The PR interval on resting 12 lead ECGs in children varies mainly in relation to heart rate and is therefore usually shorter in younger children. Many arrhythmias are not serious and don’t require treatment. This term typically Bradycardia is a heart rate that’s too slow. The usual resting heart rate for adults is about 60 to 100 beats per minute. There are many different types When your child has an arrhythmia, or irregular heartbeat, here’s how pediatric cardiologists at Rush return your child’s rhythm — and life — to normal. Departments that Treat Irregular Periods in Girls (Amenorrhea) When your child needs specialized gynecologic care, Children's National Hospital has the Changes in behavior are typical for many people during their teenage years, but sometimes big alterations in an adolescent’s personality can Heart rhythm problems (heart arrhythmias) occur when the electrical impulses that coordinate your heartbeats don't work properly, causing Congenital heart disease, genetic conditions and unhealthy lifestyle habits can put teens at higher risk for heart attack. A normal average heart rate is 60-100 beats per minute. If you A palpitation — a skipped, extra or irregular heartbeat — is a type of abnormal heart rhythm, or arrhythmia. These abnormal findings in asymptomatic individuals have a sensitivity of 51%, specificity of 61%, positive predictive accuracy of 7%, and negative predictive accuracy of 96% for A heart disorder is the most common cause of an abnormal heart rhythm. Graves’ disease occurs 3–4 times more often in teenage girls than in boys. Unfortunately, these symptoms can raise significant concerns in the patient and family, present These tempo changes based on physical activity are perfectly normal. Part 2 covers heavy bleeding, painful periods, and when to see a doctor. You may have a fast heartbeat (tachycardia), a slow heartbeat (bradycardia) or an irregular heartbeat where the We would like to show you a description here but the site won’t allow us. Some abnormal heart rhythms are normal. It's a very fast or erratic heartbeat that Diagnosing Irregular Heartbeats/Palpitations A physical exam and family history can help physicians find the cause of palpitations or irregular heartbeats. What is a heart arrhythmia? A cardiac Our expert answers what can cause a rapid heart rate in children and adults, and how any problems can be diagnosed. Healthy young people and athletes What is arrhythmia? An arrhythmia is a disorder of the heart that affects the rate or rhythm at which the heart beats; basically the way the electricity works. A heart arrhythmia occurs when the electrical signals that tell the heart to beat don't work properly. A fast heart rhythm, or tachycardia, can originate in different areas of the heart. Single PVCs are generally Severe and frequent heart palpitations, flutters, and rapid beats can be concerning. It can help find where in the heart the incorrect signaling occurs. g sympathomimetics). This Question: What is happening when my daughter’s heart starts to race? Within the last 3 weeks my daughter has had a racing heart beat during physical warm up before her hockey The rhythm of the heart is normally controlled by its natural pacemaker (the sinus node), which produces electrical impulses that create the There is a growing appreciation for differences in epidemiology, treatment, and outcomes of cardiovascular conditions by sex. Many types of irregular heart Learn when you should be worried about an irregular heartbeat and which are the main symptoms and causes. Dr. Frequently Asked Questions What are the common signs and symptoms of heart problems in teens? Common signs include chest pain, irregular heartbeat, An arrhythmia is an irregular heartbeat. A heart arrhythmia occurs when the electrical signals that tell the heart to beat Arrhythmia, also called irregular heartbeat comes in different types. Adolescence is a critical period for the development of mental health Many teenagers who struggle with chronic fatigue have symptoms suggestive of autonomic dysfunction that may include lightheadedness, headaches, palpitations, nausea, and abdominal pain. While some arrhythmias may be harmless, others can be life-threatening. Children Overview A heart arrhythmia (uh-RITH-me-uh) is an irregular heartbeat. On this On Call for All Kids, Ashish Shah, M. When they do occur, symptoms in teenagers may include chest pain, shortness of breath, and Symptoms of heart rhythm problems There are different types of heart rhythm problem. When it detects a very fast, abnormal heart rhythm, it delivers energy to your heart muscle to make it beat in a normal rhythm. (See "Irregular heart rhythm (arrhythmias) in Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia seen in clinical practice with prevalence in excess of 33 million worldwide. An arrhythmia is an abnormal rhythm of the heart, which can cause the heart to pump less effectively. Learn about the types of tachycardia, symptoms, and treatment. Flip Your heart’s electrical signals control how fast your heart beats. All arrhythmias are caused by abnormal electrical signals in the heart. If the heart rate is fast enough, a child may feel dizzy or lightheaded. In infants with heart rates in the range 100–150 An arrhythmia, like atrial fibrillation, is an abnormal heart rhythm or heartbeat. Irregular heart beat Posted by woody5 @woody5, Feb 10, 2025 Hi, over the past couple of years my heart goes out of rhythm for no reason, I could be just say down doing nothing Premature ventricular contractions (PVCs) are a type of irregular heartbeat, also called an arrhythmia. Usually accelerate (‘warm up’) and Arrhythmia (irregular heartbeats) An arrhythmia is when your heart beats too fast, too slowly or in an uneven, irregular rhythm. Most causes for palpitations in the What is the single biggest cause of an irregular heartbeat? Most irregular heartbeats start with a disturbance in the atria, the heart’s upper In an adult, a normal heart beats 60 to 100 times a minute. Some heart arrhythmias do not In an infant, the heart beats 100 to 190 times a minute on average. 3 million adolescents in the Few things can cause a parent’s heart to stand still like having a teenage child complain of chest pain. Electrocardiography (ECG or EKG) is a simple, painless test that records the What are the symptoms of heart palpitations? Heart palpitations symptoms may feel like your heart is: Racing. They are usually detected incidentally and occasionally produce symptoms. Most types of irregular heartbeat in Palpitations are a common complaint in teenagers,1–3 and are defined as a feeling or awareness of an irregular, rapid, or strong beating of the heart. This is about 1. 2. When a child has an arrhythmia, abnormal electrical signals sent through the POTS is characterized by symptoms in multiple organ systems and an abnormal increase in heart rate upon standing (30 bpm in Sometimes, heart palpitations can be a sign of a serious medical condition, such as anemia, thyroid problems or an arrhythmia. When a child has an arrhythmia, abnormal electrical signals sent through the heart muscle may cause the heart to beat Children with abnormal tachycardias often feel a sensation of palpitations, or a racing heartbeat. Many A list of some signs and symptoms to watch for that might indicate your child has a heart problem. The child with an irregular heart rhythm poses a common problem that has numerous etiologies ranging from normal benign variants to malignant arrhythmias. There are various types but all are due to the electrical conducting Supraventricular tachycardia (SVT) is a type of irregular heartbeat, also called an arrhythmia. Mild dehydration Apart from the causes below, it is also important to consider whether dizziness is due to psychological stress, social problems and depression especially among Heart conditions can affect infants and children as well as adults. In many children, the heart Tachycardia is faster than usual heart rate. Usually, no cause can be found, and no special treatment is needed. The most common is atrial fibrillation. The electricity causes the Learn when you should be worried about an irregular heartbeat and which are the main symptoms and causes. stress Pediatric arrhythmias cover a range of abnormal heart rhythms in children, from common supraventricular tachycardia (SVT) to serious An arrhythmia is an abnormal rate and/or rhythm of the heartbeat. However, other types do require treatment. Frequently, the cause in teens is Part 1 of our Teen Cycles series covered irregular periods. Pediatric cardiologist Seshadri Balaji is an internationally recognized heart rhythm specialist for children. In most Palpitations are an unusual awareness of the heartbeat that many people find distressing. It starts in the lower chambers of the heart, called the ventricles. Sometimes an irregular heartbeat is normal and the rhythm will go back to normal quickly. An arrhythmia arises when the heart’s electrical system malfunctions, causing the heartbeat to be too fast, too slow, or irregular. Cleveland Clinic Health Essentials Ventricular tachycardia is a type of irregular heartbeat, called an arrhythmia. Find out about atrial fibrillation, a condition that causes an irregular heart rhythm, including symptoms, treatment and how it affects your life. Missing a beat. 4 They can result from cardiac The American Heart Association and the American College of Cardiology recommended in 2014 against mass EKG screening, noting that An abnormal heart rhythm, also called an arrhythmia, is when your heart beats too fast, too slow, or irregularly. Arrhythmia refers to any irregularity in the heart’s rhythm — whether too fast, too slow, or erratic. Keep reading to learn more about when to worry about an irregular heartbeat. Arrhythmias may cause the heart to beat too fast, too slowly or in an irregular pattern. Dysrhythmia A cardiac dysrhythmia (arrhythmia) is an abnormal or irregular heartbeat. D. Instead, a health care provider might recommend taking steps to A pounding or fluttering heart, coupled with symptoms like pain, lightheadedness or high heart rate, could be a sign of an Narayana Health Overview A heart arrhythmia (uh-RITH-me-uh) is an irregular heartbeat. ” Premature Arrhythmia happens when the heart beats in an abnormal way. When that happens, your Supraventricular tachycardia is a type of abnormal heart rhythm in which the heart beats very quickly. Find out about different Causes of irregular menstruation in girls can range from hormonal changes to less calorie intake and excessive physical activity. Learn more from Boston Children’s Hospital. In addition, the heart rate normally slows during rest or sleep. If you have a dysrhythmia, your heart might beat too fast or too In an adult, a normal heart beats 60 to 100 times a minute. At the UC Davis Pediatric Heart Center, we specialize in treating these irregular heart rates For example, a healthy, well conditioned athlete may have a slow resting heart rate. What are arrhythmias in children? An arrhythmia is an abnormal heart rhythm. A problem with these electrical signals can cause an irregular rhythm. If none of the conditions below are the cause of dizziness, Treatment Treatment for a heart arrhythmia depends on whether the heart is beating too fast or too slow. "You can What You Need to Know About Arrhythmias Normally, special heart cells generate an electrical signal that travels through the heart. Take a comprehensive look at the causes, symptoms, diagnosis, and treatment of What do your child’s temperature, heart and respiratory rates, and blood pressure numbers tell you? Learn what’s normal, or a cause for concern. This is a list of the most common symptoms that might indicate a heart problem in children. There two Atrial fibrillation is very common. Testing and treatment can help ease the The American Heart Association helps you understand the causes of abnormal heart rhythms or arrhythmias, signs of an arrhythmia, how An arrhythmia is an abnormal heart rhythm. If you have an irregular heartbeat, it may be a sign that you have an arrhythmia. Types of What is arrhythmia? An arrhythmia is an abnormal heartbeat (too fast, too slow or irregular) that can cause the heart to pump less blood to the body than it should. Teenagers who have pernicious anemia also An irregular heartbeat, also known as arrhythmia, occurs when the electrical signals that control your heart’s rhythm are People often experience heart palpitations, which feel like the heart flutters or skips a beat, or beats at a faster rate or in an irregular rhythm. It can cause the heart to beat too fast (tachycardia), too slow (bradycardia) or in an irregular pattern. Keep Your heart normally beats in a regular rhythm and rate that's just right for the work your body is doing at any moment. Learn about the different types of pediatric heart conditions, the signs to watch out for, and more. Because of differences in teens' bodies and An irregular heartbeat, or arrhythmia, may cause a teenager’s heart to beat too quickly or too slowly. Unfortunately, these symptoms can raise significant concerns in the patient and family, present diagnostic SVT is usually diagnosed in older children and can cause heart palpitations, dizziness, chest discomfort, upset stomach, weakness, and lightheadedness. People use the term “palpitations” for a variety of symptoms. The heart can Other types of irregular heart rate in children and principles of pediatric advanced life support are discussed separately. These can make the heartbeat faster or slower Learn when you should be worried about an irregular heartbeat and which are the main symptoms and causes. 4 They can result from cardiac awareness (increased Learn about common heart rhythm disorders that can cause your heart to beat too fast, too slow or irregularly. There are many different types with different causes. However, if these symptoms accompany difficulty standing up and an abnormal increase in heart rate upon standing Teen girls are just as prone to many of the same causes of dizziness as teen boys and young adults. Find out how to manage this common heart condition effectively. Abnormal sinus bradycardia is fairly uncommon in An irregular heartbeat, also known as arrhythmia, occurs when the electrical signals that control your heart’s rhythm are disrupted. Here’s everything you need to An arrhythmia can mean the heart beats too quickly (tachycardia), too slowly (bradycardia) or it skips a beat. Here's when to worry about heart palpitations and Can an irregular heartbeat actually be normal? Details Published: January 27 2016 From time to time we evaluate children who are referred for an irregular heartbeat. (An arrhythmia is an irregular heartbeat caused by a A heart arrhythmia (uh-RITH-me-uh) is an irregular heartbeat. The heart may beat We would like to show you a description here but the site won’t allow us. What’s considered too slow can depend Atrial fibrillation is the most common type of irregular heartbeat, or arrhythmia. Teenage heart attacks are extremely rare. Unfortunately, these symptoms can raise significant concerns in the patient and family, present diagnostic Premature beats are common in normal children and teenagers. PVCs are extra heartbeats. Electrocardiography (ECG or EKG) is a simple, painless test that records the heart’s electrical activity and can help detect My 15 year old has extremely high heart rates regardless of what she is doing. But it also occurs in younger people, potentially with greater impact on their lives. Some arrhythmias are harmless and may have no An electrocardiogram (ECG) may be requested as part of the investigation of a wide range of problems in paediatrics, often in patients who have no clinical evidence of cardiac disease. Arrhythmias occur when the electrical signals in the heart don’t work as they should. These issues, while common and treatable, can affect your Your heart has an electrical system that tells it when to beat, but sometimes, those signals don’t work correctly. It occurs when an electrical signal Bradyarrhythmia describes a slow heart rate caused by an irregular heartbeat (arrhythmia). Balaji has advanced training in conditions that make the heart beat too fast, too slow or with an A child's heart beating fast — palpitations or the sensation of an irregular heartbeat — can be caused by a number of conditions, not all of Heart attack in teens is rare, but congenital heart conditions can cause sudden cardiac arrest. But some heart arrhythmias require medical treatment. Learn about the types, causes, Palpitations, dizziness, and syncope are common in seemingly healthy teenage girls. But not all skipped beats are something to worry about, as a cardiologist About cardiac arrhythmia at Mass General Brigham Heart and Vascular Institute Cardiac arrhythmias, also known as heart Unless the palpitations are caused by a heart condition, heart palpitations rarely require treatment. Learn about symptoms, diagnosis and Teen hormones may be in a state of flux, but can still become unbalanced due to a variety of underlying causes. When a child has an arrhythmia, abnormal electrical signals sent through the heart muscle may cause the heart Are you experiencing irregular heartbeats? Learn about arrhythmia, its causes, symptoms, and available treatment options in this Irregular heart rhythms, which is a surrogate of cardiac arrhythmias, can affect individuals of all ages, including young people. An arrhythmia is an abnormal or irregular heartbeat. It happens when your heart’s upper and lower chambers fall out of sync, resulting in a chaotic, faster-than-normal heart rhythm. Not Today every 3 out of 10 girls show hormonal imbalances and may suffer from diabetes, PCOS or irregular Painful cramps, missed or irregular periods or heavy bleeding can be signs of a menstrual disorder. This may include a heart rate that is sped up, slower than average, or irregular. Palpitations refer to the sensation of an abnormal heart rhythm, commonly, the heart “racing,” “fluttering” or “skipping a beat. We diagnose and treat these conditions. For newborns, a resting heart rate of more than 160 beats/minute is considered tachycardia. When a child has an arrhythmia, abnormal electrical signals sent through the Arrhythmias are abnormal heart rhythms, which can prevent the heart pumping efficiently. An EP study is mostly used to When your heart skips a beat, it can take you off guard. Syncope, or fainting, can be a warning sign that 3. Heart palpitations are heartbeats that suddenly become more noticeable. Atrial flutter is an abnormality in the beating of the heart. It is not always serious but can indicate severe heart damage. Different types of arrhythmias Your resting heart rate is an important indicator of overall health, but what is considered "normal"? Our experts explore normal heart rate Arrhythmia occurs when the heart beats too fast, too slow or erratically. These may happen What Is an Arrhythmia? An arrhythmia is an irregular heartbeat – a heart rate that's faster or slower than normal, or with extra or She said teenage girls shouldn't hesitate to ask health care professionals questions about their heart and to listen to their hearts. 5 Clinical presentation: PVCs are the most common cause of irregular heart beats in children. Abstract Palpitations can result from cardiac awareness (increased conscious perception of the heart beating) or from a fast or irregular cardiac rhythm. Most causes for palpitations in the teenager can A heart disorder is the most common cause of an abnormal heart rhythm. However, they are increasingly identified in young people, including Arrhythmia in children also is called an irregular heartbeat. Frequently the A heart structure problem present before birth (congenital heart defect) causes irregular blood flow between the heart chambers or blood Abnormal heart rhythms, also called arrhythmias, develop when a problem arises in the heart's electrical system. Below, we’ll provide more information about heart arrhythmias, causes, symptoms and when to get help. Heart arrhythmias are often perceived as problems affecting older adults. A pediatric Learn about normal heart rates for children by age and size, plus tips for checking your child's pulse and when to call a doctor for further What’s a normal heart rate for a woman? The average resting heart rate for adult women is 79 beats per minute (bpm), though the “normal” range is 60 to 100 🚀 Extremely fast fuzzy matcher & spelling checker in Python! - chinnichaitanya/spellwise Automatic SVT SVT due to abnormal or accelerated normal automaticity (e. While An arrhythmia is a problem with the heart’s electrical system that affects how the heart beats. Palpitations can result from cardiac awareness (increased conscious perception of the heart beating) or from a fast or irregular cardiac rhythm. Both terms describe an abnormal heart rhythm. Worried about a racing or fluttering heartbeat? Learn common arrhythmia symptoms, when to seek help, and available arrhythmia treatments from Elliot Heart and Vascular Arrhythmia Diagnosis & Treatment for Children Details Published: April 12 2022 Heart Arrhythmia in Children: Symptoms, Causes, Diagnosis & Treatments An arrhythmia is an Resting Heart Rate For teenagers (age 13 to 19), a normal resting heart rate is anywhere between 50 and 90 beats per minute. Learn what factors affect your heart rate and when to seek medical care. Overview of Abnormal Heart Rhythms - Learn about the causes, symptoms, diagnosis & treatment from the Merck Manuals - Medical Consumer Version. Palpitations can feel like the heart skips a beat, or it is pounding, Irregular heartbeat or arrhythmias can be experienced by people of all ages. Know the symptoms, causes, treatment SVT is usually diagnosed in older children and can cause heart palpitations, dizziness, chest discomfort, upset stomach, weakness, and lightheadedness. When a child has an arrhythmia, their heart may beat too quickly, too slowly, or in an irregular Learn the causes, symptoms, and treatments for heart arrhythmias. When the circuit is working properly, the heart beats at a regular, smooth pace. Inadequate Your heartbeat may feel like it is: racing or beating very fast irregular, with skipped or extra beats (ectopic beats) pounding or thumping fluttering Heart palpitations can last seconds, minutes or Your heartbeat may feel like it is: racing or beating very fast irregular, with skipped or extra beats (ectopic beats) pounding or thumping fluttering Heart palpitations can last seconds, minutes or A normal heart rate for most adults is 60 to 100 beats per minute. An inquisitive teenager and a determined cardiologist work together to treat a rare type of pediatric arrhythmia which required a different approach. They When does an irregular heartbeat or other unexpected feeling warrant a visit to your doctor? Learn more about the symptoms to watch for and An estimated 1 in 25 youths ages 12-19 have hypertension, which is when the blood pressure remains abnormally high. Having an extra beat. Sometimes people are aware of abnormal heart rhythms, but many times they Arrhythmia is a condition in which your heartbeat may be too fast (tachycardia), too slow (bradycardia), or irregular. , who specializes in pediatric cardiology in the Johns Hopkins All Children’s Heart Arrhythmia is an irregular heartbeat. This articles shares tips on living life to the fullest with uneven heart beats. Tachycardia (tak-ih-KAHR-dee-uh) is the medical term for a heart rate over 100 beats a minute. This device Causes of arrhythmias in children: Structural Heart Defects: Some children are born with heart abnormalities that can predispose them to arrhythmias. Rarely syncope or loss of The average teenage heart rate typically ranges between 60 and 100 beats per minute at rest, reflecting normal cardiovascular function during adolescence. Learn how to recognise the symptoms here. Bradycardia (brad-e-KAHR-dee-uh) is a slow heart rate. Other common situations can trigger changes in heart rhythms too. Stress, exercise, medication or, rarely, a medical condition can trigger We would like to show you a description here but the site won’t allow us. The upper chambers of the heart beat irregularly. Unfortunately, these symptoms can raise significant concerns in the patient and family, AFib is one of the most common types of irregular heart rhythms. AFib can lead to Hyperthyroidism or Graves’ disease is characterized by anxiety, irritability, nervousness, excessive Palpitations, dizziness, and syncope are common in seemingly healthy teenage girls. What is an arrhythmia? An arrhythmia is an irregular heartbeat. Your heart can beat too fast, too slow or irregularly. But sometimes, an irregular heart rhythm can make your heart unable to These abnormal findings in asymptomatic individuals have a sensitivity of 51%, specificity of 61%, positive predictive accuracy of 7%, and negative predictive accuracy of 96% for Abstract Palpitations, dizziness, and syncope are common in seemingly healthy teenage girls. When an abnormal Your reproductive hormones play a crucial role in your overall health, including your mental and cardiovascular well-being. Read about symptoms and treatment. While The child with an irregular heart rhythm poses a common problem that has numerous etiologies ranging from normal benign variants to malignant arrhythmias. Learn about arrhythmias in children, including symptoms, types and treatments. Pounding. A healthy heart usually beats at a steady rhythm, but a number of things can disrupt your heart’s regular pacing. Hormone-related An arrhythmia is any abnormal heart beat. Historically, cardiovascular clinical trials have under Abnormal heart rate symptoms include chest pain, weakness, palpitations, and dizziness. Atrial fibrillation (AFib) is an irregular and often very rapid heart rhythm. “In young Types of Arrhythmia How We Can Help You Arrhythmia describes a group of conditions that affect the heart’s natural rhythm. We would like to show you a description here but the site won’t allow us. Several types of arrhythmias can occur What Causes Heart Palpitations? Many things can make the heart beat quickly, including exercise, stress, fever, caffeine, nicotine, illegal drugs, thyroid What are arrhythmias in children? An arrhythmia is an abnormal heart rhythm. Inherited Heart palpitations (pal-pih-TAY-shuns) are feelings of having a fast-beating, fluttering or pounding heart. Common triggers can be but not limited to cardiovascular See also Resuscitation: Care of the seriously unwell child Recognition of the seriously unwell neonate and young infant Supraventricular Tachycardia Key Atrial fibrillation happens more often later in life. Physicians may also refer to this condition as What is an irregular heartbeat (arrhythmia)? Cardiac arrhythmia occurs when your heart beats too fast (tachycardia), too slow Many factors can cause a pediatric arrhythmia. Your heart may beat too fast, too slowly, or with an irregular rhythm. In In a child with arrhythmia, the heart may beat too quickly, beat too slowly, skip a beat or have extra beats. Determining the An arrhythmia is a problem with the rate or rhythm of your heartbeat. A heart arrhythmia is an irregular heartbeat. The hearts of adults at rest usually beat between 60 and 100 times a minute. Abnormal heart rate is common in children with Prevention and Treatment of Arrhythmia Do you need treatment? Most abnormal heart rhythms, or arrhythmias, are considered What are arrhythmias in children? An arrhythmia is an abnormal heart rhythm. When something interrupts the circuit, the heartbeat can become irregular, and an arrhythmia occurs. The heart may beat too fast or too 4) As this electrical signal moves through the heart, it stimulates the heart muscle to beat in a specific order; first the atria contract, Background: The association between decreased heart rate variability (HRV) and increased internalizing symptoms is well documented.


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