![]() All of these conditions can affect the conduction system we just mentioned. Some people are born with certain defects, too. Examples include high blood pressure, coronary artery disease, or heavy alcohol use. This is called an arrhythmia.Īn abnormal shape or structure of the heart: The shape and size of the heart can begin to change in response to other medical problems. Problems with this conduction system can cause the signal to go awry. Problems with the heart’s electrical pathways: There is a special electrical circuit in our heart that controls each heart beat. Some examples of medical problems that can cause bradycardia include: Many of the medical conditions that cause bradycardia are more common in people who are older or have underlying heart conditions. What other conditions cause a low heart rate? ![]() ![]() While these causes of bradycardia are expected, there are some concerning conditions that can also cause a low heart rate. Some examples include blood pressure medications, like beta blockers or calcium channel blockers. When the heart beats more efficiently in someone who has been physically training over time, their heart rate tends to be lower.Ĭertain medications: Some medications lower the heart rate in order to decrease the amount of work the heart has to do. And a stronger heart can pump blood more efficiently. Physical fitness: Cardiovascular activity strengthens our heart muscle. When we’re sleeping, our bodies don’t use as much energy, so our nervous system tells the heart to take a little bit of a break. When we are lying down and resting, our heart doesn't have to work as hard against gravity to get the blood everywhere it needs to go. This is also known as our resting heart rate. Sleep: Our heart rate is generally lower when we are asleep or in a relaxed state. Some harmless causes of bradycardia include: It naturally changes in response to what our body needs and what we are doing. It is normal for our heart rate to fluctuate throughout the day. What are the harmless causes of low heart rate? We’ll review when a low heart rate is normal and healthy, and how to know if it is a cause for concern. In fact, bradycardia can be a sign of good physical fitness. This is especially true for people who are young and healthy with no other symptoms. While there are times that bradycardia can be a sign of something serious going on, often it’s not something to worry about. Sometimes, you might notice that your heart rate seems a little slower than normal.īradycardia is the medical term for a heart rate under 60 beats per minute. With smartwatches and fitness tracking devices gaining in popularity, people are aware of their minute-to-minute heart rate more than ever.
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