The Science Behind Why A Newborn Baby’s First Emotion Is A Cry, Not A Laugh

Why Newborn Baby Cry: People have witnessed in movies as well as in real life that whenever a baby enters the world, the first emotion comes as a cry. It is such a common phenomenon that people hardly wonder why babies first break into tears after coming into the world. There is a fascinating fact that lies deeply rooted in science, nature and human life. Apart from being insensitive, crying is an important way for infants to communicate their needs or discomfort before they can develop into complex speakers. This primal response ensures survival just after the child is born.

What Does A Baby's First Cry Mean?

While most babies cry after their birth, it is definitely not a compulsion but an important sign. Baby’s first cry means that the body’s systems are switching on. It is to be noted that babies do not cry out of pain after birth.

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According to the doctors, the first cry of the baby is a sign of good health. Doctors use something called the Apgar score to assess the newborn immediately. Crying shows that the lungs and breathing system are working. Moreover, if the baby does not cry, doctors gently rub their back or tap their feet to activate breathing.

Reason Why Babies Cry After Birth (Image Credits: Canva)

Reason Behind Why Babies Cry Immediately After Birth

Inside the womb, the baby lives in a warm, fluid-laden environment for nine months. Their lungs are filled with fluid, which is why they have never taken a real breath. After they are born, air rushes into their lungs for the first time. The sudden pressure inside them expands the tiny air sacs and initiates crying, helping oxygen flow through the body. Often, the doctors call this the baby’s first ‘system on’ moment.

Moreover, a sudden change in temperature as well as the surrounding environment activates the newborn’s instinctive cry. The womb stays at a constant 37°C. Thus, being out in the world for the first time, they face cold air, bright lights, loud sounds, and the pull of gravity. This dramatic shift shocks the nervous system and crying becomes the natural response.

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The first emotion of the newborn is mostly crying rather than laughing, as it falls squarely in the natural and necessary course of human development. Understanding the science behind this allows the parents and the elderly to appreciate the way the newborns engage with the external environment.