AP BIOLOGY

Detailed explanation-1: -Infants cry as a form of basic instinctive communication. Essentially, newborns are transitioning from life in the womb to the external environment. Up to 27% of parents describe problems with infant crying in the first four months. Up to 38% identify a problem with their infant crying within the first year.

Detailed explanation-2: -Rooting reflex. This is a basic survival instinct. Babies know how to find and latch on to a nipple to feed. If you stroke the side of your baby’s cheek with your finger or breast, he or she will turn their head, open their mouth, and begin to make sucking movements.

Detailed explanation-3: -Colic is the term used to describe infants who cry excessively for no apparent reason during the first three months of life. Colic is one of the most distressing problems of infancy.

Detailed explanation-4: -Starting from the general hypothesis that crying is a self-soothing behavior, we consider different mechanisms through which these effects may appear. In the first section, we briefly explain the main functions of human crying.

Detailed explanation-5: -Infants have a cry reflex that is a normal response to stimuli, such as pain or hunger. Premature infants may not have a cry reflex. Therefore, they must be monitored closely for signs of hunger and pain.