What is the rate of a normal heartbeat? Why do we hear the sound of a heartbeat?

Heart rate refers to the number of heartbeats per unit of time. Generally refers to the number of heartbeats per minute. There is significant individual variation in the heart rate of normal adults at rest, averaging around 75 beats (between 60 and 100 beats).

Heart rate can vary depending on age, gender, and other physiological conditions. Newborn babies have a fast heart rate of more than 130 beats. In adults, women's heart rate is generally slightly faster than men's.

In the same person, the heart rate slows down when they are quiet or sleeping, and increases when they are exercising or when they are emotional, which can increase or slow down under the influence of certain drugs or neurohumoral factors. People who regularly engage in physical labor and physical activity usually have a slower heart rate.

60-100 times, it doesn't matter if you hear or feel it once in a while.

The normal heart rate of an adult is between 60 and 100 beats per minute, and the heart rate refers to the number of heartbeats per minute in a normal person's quiet state, also known as resting heart rate. Heartbeat frequency is not necessarily related to lifespan, and there is no clear research conclusion on whether a person's heartbeat is related to lifespan, that is, heartbeat is not necessarily related to lifespan. This is because there are many factors that affect a person's lifespan, such as whether or not there is structural heart disease.

Heart rate, or heart rate for short, is one of the four basic vital signs of the human body. A normal adult's heart rate in a calm state is between 60 and 90 beats per minute, and the heartbeat should be regular. There is no clear research conclusion on whether a person's heartbeat is related to lifespan, that is, heartbeat is not necessarily related to lifespan.

Categories: Medical & Health >> Common sense of the human body.

Analysis: Heart rhythm: Modern Chinese interprets "heart rhythm" as:

The rhythm of the heart when it beats. "A normal person's heart should be able to beat rhythmically and regularly. There is a certain time interval between each beating and the next beat, and the interval between each beating does not exceed a second, which is regarded as normal in medicine.

For some reason, there is an irregular change in the rhythm or rhythm of the heartbeat, that is, when the rhythm is inconsistent, it will be shown on the ECG, which is what doctors often diagnose for us: arrhythmia. It's not a big deal.

Because there is an error in the interval between heart beats. As long as the Nian Brother stove does not exceed its range, it is normal. The starting point of the heartbeat, also known as the pacemaker, is a special tissue in the heart called the sinus node, so when there is nothing wrong with the normal heartbeat, that is, the rhythm or rhythm of the heartbeat, doctors often diagnose you as:

Sinus rhythm. So don't worry about sinus rhythm or sinus arrhythmia. If there is a serious disturbance in the rhythm or rhythm of the heartbeat, it is usually due to structural heart disease and you should seek medical attention.

Heart rate: Modern Chinese interprets "heart rate" as: "The frequency at which the heart beats."

That is, the number of times the heart beats in a certain time. A normal adult has a heartbeat of 60,100 beats per minute. The change in between, for example, yesterday your heart beat 80 beats per minute, but today your heart beats 85 beats, or 70 beats, doesn't make medical sense, don't care.

More than 100 beats per minute is a fast heart rate, also known as tachycardia, or rapid heart rate; If it is less than 60 beats per minute, it is a slow heart rate, also known as bradycardia, or bradycardia. Whether the heart rate is too fast or the heart rate is too slow, it is caused by the arrhythmia of the heart's beating.

A normal person's heartbeat is a second, that is, infrasound, which is not in the frequency range of audible sound (20Hz---20000Hz).

It is the frequency of excitation, and the sound of the heartbeat that is usually heard is emitted by the vibration of the chest cavity, and its frequency is that its natural frequency is within the audible range, so it can be heard.

Using a stethoscope can reduce the diffusion of sound waves; It is an infrasound wave, the frequency is less than 20Hz is infrasound, and the frequency is greater than 2000Hz is ultrasound.

In the case of a volcanic eruption, or a bomb**, infrasonic waves will be generated, and the human body cannot produce infrasonic waves, and infrasound waves are very harmful to the human body.

The normal range of heart rate per minute for a normal adult at rest is 60 to 100 beats per minute. When people are exercising vigorously or are emotionally excited, the heart rate may exceed the upper limit of normal. If the patient is asleep, the heart rate may be lower than the lower limit of normal, which is also considered relatively normal.

If you want to assess whether the patient's current heart rate is normal, contact the patient with a 24-hour Holter ECG.

An adult's heart beats about 70 or 80 beats per minute, but between 60 and 100 beats is normal. Women jump faster than men during labor, children jump faster than adults, and newborns can jump up to 150 times per minute.