Tungekyssing (
premastikering) mellom mor og spedbarn er en vanlig iboende instinkt.
Premastication, pre-chewing, or kiss feeding is the act of chewing food for the purpose of physically breaking it down in order to feed another that is incapable of masticating the food by themselves. This is often done by the mother or relatives of a baby to produce baby food capable of being consumed by the child during the weaning process.
In all human cultures premastication/kiss-feeding or kissing between mother and infant has been observed in all with kissing believed to be a socially ritualized form of feeding premasticated food. There is high similarity in the execution of kiss-feeding and human kisses (e.g. French kiss); in the former, the tongue is used to push food from mother to child with the child receiving both the mother's food and tongue in sucking movements, and the latter simply forgoes the premasticated food. In fact, observations across various species and cultures confirms that the act of kissing and premastication have most likely evolved from the similar relationship-based feeding behaviours.
The act of premastication is commonly found in all human societies and populations, although it is less prevalent in some than others. The evolution and selective advantage of premastication behaviours is that it supplements the infant diet of breast milk by providing access to more macro- and micro-nutrients, as well as digestive enzymes. Although disease can be transmitted through saliva in the pre-chewed foods, the benefits conferred outweighed any risks of the practice during the evolution of human behaviour. Furthermore, discouraging premastication as prevention to disease transmission may prove as disastrous an infant public health policy as when infants breastfeeding was discouraged in the late 1980s and early 1990s. In populations with healthy caregivers, premastication is not correlated with negative health consequences, with potential benefits and pitfalls of this practice greatly depend on the dietary and medical circumstances of the provider and child.
Det er ikke noe å kjemmes over og er bare nå nylig at folk i vesten har sluttet å praksisere det. Det er jo bare å forvente at en pornoskadd vestlig mann ser på denne instinkten som motbydelig og insinuerer at morra er pedofil
