How much does a heartbeat take in one minute to be normal? What causes a slow heartbeat?

A slow heartbeat, if it is less than 60 beats, is bradycardia. If the heart rate is sinus, it is sinus bradyarrhythmia. The causes can be divided into pathological and physiological.

Physiological elements: sinus bradycardia is more common in young people who are physically and mentally healthy, in athletes, and in dormant states. Bradycardia is one of the main types of arrhythmia, and when the heart rate is lower than 50 beats, dizziness, fatigue, and listlessness usually occur.

Many patients can have a normal heart rate, but when the heart rate drops below 40 beats per minute, dizziness, transient blackness, drowsiness, palpitation, shortness of breath, chest tightness and shortness of breath, occasionally a sensation of impact in the precordial area, and fainting may occur in severe cases.

Heartbeat, to put it bluntly, generally refers to cardiovascular fibrillation, and the normal range is only 60-100 beats per minute, but it may be due to the sex, age or other physiological factors of the fetus to form a certain difference. In general, the younger you are, the faster your heart rate is. Conversely, the older you get, the slower your heart rate becomes.

And a woman's heart rate is faster than that of a man of the same age, which is considered normal, so don't worry too much, just stay within the normal range. In a dormant state, most people experience bradycardia. An athlete's heartbeat, on the other hand, may be below 60 per minute at rest.

Changes in heart rate are generally related to heart disease, iron deficiency anemia, hyperthyroidism and other conditions, and generally continue to be accompanied by palpitation, shortness of breath, chest tightness and other discomforts, so it is necessary to receive regular medical treatment as soon as possible. There are also some ordinary people who may have a slow heartbeat, especially players, because regular exercise increases the retraction energy of the ventricles, and the blood bar derived from each heartbeat increases, which is sufficient to supply the needs of the internal organs of the human body, so the heartbeat is 50-60 beats per minute.

However, if the heart beats only 30 to 40 beats per minute, it is considered abnormal, and the cause needs to be investigated. Bradycardia is caused by sympathetic nerve excitation, and in the medulla oblongata of the human brain, there is a central nervous system that adjusts the theme activities of cardiovascular and cerebrovascular diseases, and this nerve center can suppress the heartbeat and increase the heartbeat. The sympathetic nerves are the sympathetic nerves produced by this nerve center that manipulate the speed of the heartbeat.

When the sympathetic nerve is excited, its peripheral nerves are able to release a chemical called choline, which has a cardiovascular inhibitory effect and slows the heartbeat.

60 100 times is more reasonable. It can be a congenital heart problem, and sometimes an abnormality in the heart structure can cause a slow heartbeat.

A heartbeat of around 60 to 100 beats a minute is normal. It may be coronary heart disease, myocarditis, arrhythmia, myocardial infarction, and ischemia can cause the heart to beat too slowly.

A one-minute heartbeat at 60 140 is relatively normal. This is caused by a lack of blood supply, or due to older age.

Heart rate: A normal person's heart rate should be between 60 and 100 beats per minute, and more or less than it is abnormal. However, the number of heartbeats varies depending on age.

The heartbeat of the elderly over 60 years old can be slowed down, but the slowest can not be less than 50 beats per minute, athletes or strong physical laborers, because the cardiac output is significantly larger than normal, the number of heartbeats can be about 45 times. Fever, mood.

Excitement, nervousness, intimidation, etc., can have a one-time increase in the number of heartbeats, which is a reflection of the normal regulation of the body. In short, the number of heartbeats can reflect your own heart function. A strong, strong, regular, and coordinated heartbeat is one of the hallmarks of good heart function.

Rhythm: The heart is responsible for the blood of all organs of the body**, and through the strong beat of the heart, the oxidized blood is continuously transported to all parts of the body for metabolism and a full mental state. Normal people can not be more than a second difference between each heartbeat, obvious rhythm is a corroboration of heart disease, such as excessive prolonged interval, it is likely to be all kinds of conduction block, should go to the hospital in time to check the electrocardiogram, clear diagnosis, early medication.

Sleep: Sleep can also reflect heart function, and some elderly people suddenly feel palpitation and shortness of breath when they sleep late at night. Shortness of breath is relieved after sitting up, which is a manifestation of nocturnal left-sided heart failure and a reflection of cardiac insufficiency.

Elderly people with the above conditions should take medication** to improve heart function, and sleep pillows can be appropriately raised to avoid shortness of breath. The correct sleeping position is the right side lying position.

Symptoms: There are various symptoms of all kinds of heart disease, once there is difficulty breathing, chest pain, foamy blood sputum, and blackness in front of the eyes, these are all symptoms of heart disease, and you should not be careless, and you should go to the hospital as soon as possible**.

Exercise: Some heart patients cannot show cardiac changes under calm conditions, and only when the heart load is increased, can the essence of heart disease be revealed, the most typical is coronary heart patients. The normal heart has sufficient reserve capacity, it has a certain exercise load, when a certain disease occurs in the heart, this reserve capacity will be significantly weakened, and the light activity will feel shortness of breath.

If you are suspected of coronary heart disease but there is no definite basis, you should go to the hospital for a Holter electrocardiogram examination, which will give you a satisfactory answer.