An infant (from the Latin word infans, meaning "unable to speak" or "speechless") is the more formal or specialised synonym for "baby", the very young offspring of a human. The term may also be used to refer to juveniles of other organisms.
Typically, babies start smiling between 6 and 12 weeks, but you may notice a smile or smirk soon after baby's born. These early smiles are called “reflex smiles.” Babies start reflex smiling before birth and continue to do so as newborns.
A newborn is, in colloquial use, an infant who is only hours, days, or up to one month old. In medical contexts, newborn or neonate (from Latin, neonatus, newborn) refers to an infant in the first 28 days after birth;the term applies to premature, full term, and postmature infants; before birth, the term "fetus" is used.
Smiling Makes Us Feel Good. Studies have shown that smiling releases endorphins, natural painkillers, and serotonin. Together these three neurotransmitters make us feel good from head to toe. Not only do these natural chemicals elevate your mood, but they also relax your body and reduce physical pain.
The term "infant" is typically applied to young children under one year of age; however, definitions may vary and may include children up to two years of age. When a human child learns to walk, the term "toddler" may be used instead.
"Baby" is a synonymous term for an infant animal, including humans. It can also be a colloquial term for toddler.Babies are associated with laughter and peace, their smile is so heart warming. Babies bring joy, love, into the family and it soothes the soul.
So after a stressful day at work, babies have a high percentage of making you active even when your body doesn't want to, they're full of play.
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