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One of the things that attracts the attention of many mothers who have just given birth is how fast their baby's heart beats, when they take, hug and snuggle it in their arms.
The heart of a newborn baby beats much faster than that of an adult, and that can be noticed just by resting your hand on his chest. During gestation, the baby has a different circulation. The fetus's blood barely passes through the lungs, where it is normal for it to be oxygenated, but rather in the placenta.
At birth, the pulmonary arteries open and gas exchange begins to occur in the lungs. That is the beginning of the change that will occur in the baby's circulation. This transition is automatic so if a problem occurs it will be due to a heart abnormality. But that can be detected with the Apgar test.
The rapid heartbeat of a newborn baby is normal. While the rate of an adult is 60 to 80 beats per minute (bpm), that of babies is usually between 120 and 160 bpm. At one month of birth, it usually presents from 100 to 150 bpm, at two years between 85 and 125 bpm, at four years from 75 to 115 bpm, at 6 years from 65 to 100 bpm, and those over 6 years , between 60 and 100 bpm. The heart of the little ones beats more frequently because it is still immature.
Apart from the change that occurs in the circulation and oxygenation of the blood, it is also known that the cells of the heart of a baby are smaller and are not organized like those of adults. The heartbeat rate increases so that oxygen reaches the tissues and makes everything work as it should, for children. Another of the many 'miracles' performed by the human body.
You can read more articles similar to The rapid heartbeat of a baby, in the category of on-site development stages.