During birth we experience the adrenaline rush even more than during the heart attack that help us slip and kick start lungs to take its first breath. Our lungs before the birth was covered in the amniotic fluid and hence undergoes massive change as we begin to breath. First breath we take goes to alveoli absorbing oxygen and releasing co2. Just after 1 month we begin to make sense about what is out in the environment. DNA is what sets the timeline for us. DNA had the information all along. Hypothalamus is primitive. temperature control is really something we started later in life, hence we are truly disturbed by the temperature difference in womb to external environment from 38 to 20 degree centigrade. Hypothalamus is under pressure to develop and without the temperature controlling system we loose body temperature dramatically if exposed but luckily brown fats with active cells are present just beneath the epidermis that protect us, which melts away as hypothalamus takes control later. We know the process of suckling our mothers breast just by the instinct, it is in our gene. Bacteria is really a danger during our early days but our mothers milk is what really gives the stamina and strength for us to fight that condition. Going out with mom is really a tough job for our young brain to bear because we are bombarded with different chemicals, unheard noises, different lights and colors. These things overwhelm our brain. We might have cried, but its a different story that we don't remember.
Our ears have another story to tell. Three tiny osicles that almost remain the same size of throughout our life amplify what we heard by the factor of 22. Hairs in the cochlea vibrate to recognize high and low frequency sounds. Our eye sight is blurred because our lenses are under development, we can't focus, additionally rods and cones are under development hence we mostly see image in black and white for up to two months. Our brain is pretty confused, it don't know how to interpret images. After two months it begins to distinguish shapes and colors. Just after 4 months we begin to recognize facial patterns and after almost 8 months we are sure about things we are seeing. Additionally baby's eyes when borne were blue but gradually cells of iris brings out many pigmentation. Our nervous system has sense perceiving speed of almost 320 km/hr, and for us touch is the most used sense. Our tongue has the highest sensory nerves than any other part in the body, almost 9000 sensory receptors that's why we would like to taste everything with our tongue, it feels good to taste from tongue, you loved it that time and you love it even now. We are such a slow grower even after 2-3 years we are barely learning to communicate, look at dogs, cats and even cows, they matured and even reproduce by that time. DNA is what sets the timeline for all. They cry cause they know to cry from birth, besides can' t you understand the pain of elongating teeth piercing through your soft skin? Painful.
Age 1- The time of interaction, exploration, bones are getting stronger. Osteoblast are depositing minerals and makes the newly formed bone to get stronger over time.
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