In a normal state, the average human heart beats at a frequency of approximately 60-80 beats per minute. It is the frequency of strokes and the pulse is determined - the heart pushes blood and arteries into the arteries and veins, which expands the walls of the vessels, due to which their walls oscillate. Together with the blood that pumped the heart, to organs and tissues, vitalizing oxygen comes in and useful substances necessary for a full-time life.
From the moment when a woman has born a new life, the body receives a command in every way to provide it with everything necessary for normal development. Oxygen and nutrients come to the fetus through the mother's blood, which means that the heart will have to work "for two" - for the mother and her future baby. The shock volume of the heart is noticeably increased by the second trimester of pregnancy, when the baby has already laid down all the vital organs and systems. Right now, he needs the most complete supply of oxygen and useful substances. In addition, the volume of blood circulating through the body increases, and the heart has to work in a strengthened mode in order to overtake the blood.
In this regard, many mothers begin to feel that the heart has accelerated the tempo and pounding already with a frequency of up to 100 beats per minute. The maximum heart beat frequency reaches in the third trimester of pregnancy: during this period, the pulse can reach 110-115 beats per minute. Such a condition in medical practice is called physiological tachycardia - a rapid rate of cardiac contractions. Many women begin to worry, discovering a rapid pulse during pregnancy. But, as doctors say, tachycardia really poses a danger only to healthy people in a normal state. The increase in pulse during pregnancy does not pose any danger to mother or baby. And after the birth of a baby tachycardia and the woman does not bother. The reason for seeking medical help in case of an accelerated heartbeat during pregnancy may be tachycardia accompanying nausea and vomiting - these symptoms may indicate any heart disease that needs to be diagnosed.
It may also happen that during pregnancy a woman will feel, on the contrary, a slowing of the pulse. Such a condition doctors dubbed bradycardia, which is characterized by a decrease in heart rate. As a rule, a woman does not experience any discomfort and discomfort during the manifestation of a bradycardia during pregnancy. Unless in the case of a strong slow heartbeat, dizziness, fainting, a drop in blood pressure is possible. And here in this case, a consultation with a specialist is necessary - bradycardia can be caused by any defeats of the heart. Slight slowing of the pulse during gestation, in turn, the general condition of the woman does not worsen and for the baby is not dangerous.