What causes low heart rate Bradycardia is a slower than normal heart rate. Conditions such as Addison's disease that affect certain glands that make key hormones may cause blood pressure to drop. A resting heart rate below 60 BPM is considered too slow (bradycardia), which depends on a person’s age and physical condition. Jan 17, 2025 · A high heart rate can cause symptoms such as fatigue, dizziness, chest pain, or shortness of breath. While this can happen with fit adults, it can indicate an underlying problem with the heart. First, heart problems can be a cause of bradycardia: Sick sinus syndrome: a defect in the heart’s natural pacemaker (the sinus node or sinoatrial node) that causes it not to send electrical signals to the rest of the heart, slowing down or disturbing the heart Sep 24, 2024 · Bradycardia is a heart rate that’s too slow, usually less than 60 beats per minute for adults. Hormone-related diseases, also called endocrine conditions. Aug 20, 2023 · Treating the underlying cause might then help the heart rate to come back up to normal. Causes of a slow heart rate may include problems in the conduction pathways of the heart that don’t allow electrical impulses to pass properly from the atria to the ventricles, problems with the sinoatrial (SA) node, heart damage from heart disease or a heart Oct 27, 2023 · Heart attacks occur when there is a lack of blood supply to the heart. A sleep test can tell you if you have sleep apnea. Sep 24, 2024 · Learn what a dangerously low heart rate is, how it affects your health, and when to worry about it. May 1, 2024 · A heart rate below 60 bpm during the day is considered a low heart rate, or what doctors call bradycardia. If you don't have symptoms, treatment might not be needed. A low resting heart rate may occur in some older people, athletes, and people who exercise frequently, but it is not a medical problem. The vagal tone tells you how well the vagus nerve is functioning. In other patients a low heart rate causes no effect whatsoever as the heart simply pumps out more blood with each beat to compensate. org Jun 15, 2023 · What causes a low heart rate? The causes of low heart rates are many and varied. Bradycardia (a heart rate of 40 to 60bpm) can be normal if: Nov 27, 2023 · Bradycardia, or a slow heart rate, can occur due to heart issues and other health conditions. Dec 2, 2024 · Bradycardia is a slow heart rate, usually fewer than 60 beats per minute. These symptoms are associated with low output heart failure. May 22, 2024 · Sleep bradycardia is a slow heart rate during sleep. What causes bradycardia? Some children and elderly people, as well as athletes and people who exercise often, may have a low resting heart rate that is not a medical condition. 2 days ago · 01/27/2025 . Sick sinus syndrome However, a low heart rate doesn’t always present symptoms and may not pose a risk for some individuals. Depending on the cause, bradycardia can last a short time or a long time. In mild cases, treatment can be done at home. . But if you do have symptoms — such as feeling dizzy, lightheaded, fatigued, breathless, or confused, or if you faint — seek medical care right away. It can be alarming, but it does Nov 16, 2023 · Did you know that certain medications can cause symptom of 'Bradycardia' or 'Slow Heart Rate'. This condition is called arrhythmia, or dysrhythmia. Other, more serious causes of bradycardia include drug reactions, advanced age, conditions of the heart and other ailments. A low heart rate is often harmless but the causes of bradycardia include various heart conditions or other conditions such as hypothyroidism. Feb 20, 2024 · Especially if it doesn’t do this while you’re awake during the day. Symptoms associated with a low heart rate that need to be assessed and investigated by a healthcare professional include: Lack of energy. Bradycardia can be caused by many conditions. Bradycardia treatment may include: Jul 22, 2024 · What Heart Rate Means: Defining Good vs Abnormal or Dangerous Readings . While a slow heart rate can be a normal occurrence for some, such as athletes or people in excellent physical condition, it can also be a sign of an underlying health issue. If left untreated, they can lead to potentially serious health complications. A low heart rate occurs. Knowing when to worry about a low heart rate can depend on numerous other health factors. The most common cause of a low heart rate is a malfunction in the heart's sinus node, its natural pacemaker. Troponin is a key indicator that providers use to diagnose heart attacks. If you have bradycardia, your heart rate is less than 60bpm. Mar 2, 2022 · Causes of Low Heart Rate Problems. Dizziness. Jun 13, 2024 · Heart and heart valve conditions. However, those with moderate to severe symptoms will likely need to be hospitalized for treatment. By bringing the body temperature back to normal, the heart rate should return to normal as well. Damage to those cells causes troponin to leak into your blood, which can indicate damage to your heart. Jan 22, 2024 · Both tachycardia (fast heart rate) and bradycardia (low heart rate) are typically indicators of other health conditions. It may be a natural, healthy sleep response or a sign of an underlying health issue. Learn about the common causes, symptoms and treatment options for bradycardia from Cleveland Clinic cardiologist Jose Baez-Escudero, MD. Mar 17, 2023 · A low heart rate (bradycardia) is below 60 bpm and can be normal or a sign of health issues. It may cause symptoms like shortness of breath and fatigue. Dec 18, 2023 · However, some people have an irregular heart rhythm that causes their heart rate to jump between high and low. Another name for the condition is sinus bradycardia. During rest or a state of relaxation, a normal heart rate in adults is considered between 60 to 100 beats per minute. Troponin: Your heart muscle’s cells contain a specific type of troponin, a protein. Heart rate is simply the number of times your heart beats per minute. Bradycardia, also known as a low heart rate or slow pulse, is a condition where the heart beats fewer than 60 times per minute. Once the nerve's tone returns to normal, the heart rate also returns to normal. A normal adult resting heart rate is generally between 60 and 100 beats per minute (bpm). Thyroid hormone levels: Hypothyroidism (low thyroid function) can cause bradycardia. Apr 30, 2024 · Low Heart Rate Causes. Bradycardia can also have more severe reasons, such as drug side effects, aging , cardiac problems, and other illnesses. Find these drugs listed on the page and be warned of similar symptoms as possible side-effects. They can check for the possible causes of a low heart rate that we already mentioned. Tiredness. Sep 26, 2023 · HRV, or heart rate variability, is a measure of the time between heartbeats. But it’s still a good idea to see your healthcare professional. A heart rate that's too low can vary between individuals, although most people fall into the average range. This nerve helps regulate the heart, lungs, and digestive tract. HRV measures vary by person and over time, fluctuating based on lifestyle choices and lived experiences, from stress levels to sleep patterns, exercise habits, and levels of physical exertion the body, day-to-day. If your heart rate is low and you don't have any symptoms, there's no reason to worry. Find out the common causes, risk factors, and tests for bradycardia, and the possible treatments to regulate your heartbeat. Heart rate varies throughout the day, minute by minute, based on the state of your body. This abnormally low heart rate can cause the brain and other organs to become oxygen-deprived, which can lead to symptoms such as: Fainting; Dizziness; Fatigue; Weakness; Shortness of breath; Chest pain; Confusion; Memory difficulties; Quickly tiring during physical activity Sep 15, 2023 · Treatments a healthcare provider provides will vary based on the underlying cause of high heart rate and low blood pressure. Dec 5, 2023 · Transient sinus bradycardia: An increased tone in the vagus nerve, such as during sleep, often leads to this type of low heart rate. Symptoms include: chest pain, pressure, or tightness; pain that may spread to arms, neck, jaw, or back Dec 13, 2024 · Treatment for bradycardia depends on how severe the symptoms are and the cause of the slow heart rate. Jun 29, 2024 · When to worry about low heart rate. One important cause of a low heart rate during sleep is sleep apnea. The main symptom of bradycardia is a heart rate below 60 beats per minute. Your healthcare provider will tell you what heart rate is too low for you. Bradycardia may also be caused by health conditions that do need treatment. It can be caused by various factors, such as heart problems, medications, infections, or metabolic issues. A slow heart rate is normal for some people, such as athletes, and needs no treatment. Some of the most common causes include: Not getting enough electrolytes in your diet, especially calcium, magnesium, and See full list on mayoclinic. For example, if a cat’s heart rate is too low because of hypothermia, techniques will be used to warm the pet and get their body temperature back to normal. A heart attack, heart failure, heart valve disease and a slow heart rate called bradycardia can cause low blood pressure. Jan 7, 2017 · In some patients a low heart rate can lead to a low output and cause symptoms such as dizziness, shortness of breath and fatigue. 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