Everyone would get excited and exasperated to see the baby. When the baby is six months old, almost everyone will tease and approached him. However, when growing up, the level of cuteness and baby cute slowly faded. The study found that the baby will look cute lost when the age of 4.5 years.

Lu Zhu Luo, Hong Li and Kang Lee in China and at the University of Toronto recruited 60 men and women and then shows some of the faces of children, from infancy to old faces six years and adulthood. The participants were asked to rate each face and how cute appeal.

The researchers wanted to know if children are considered more attractive than adult children and at what age children begin to lose keimutannya. The study, published Journal of Experimental Child Psychology explains that children begin to no longer considered cute and adorable at the age of 4.5 years.

The participants were men and women judge more adorable babies and toddlers and more attractive than more attractive than the children.

Baby face is characterized as a prominent forehead, large head, round face, large eyes and small noses and mouths. As living creatures, humans have evolved to be attracted to these characteristics and think it’s funny or cute. Tendency to prefer the boyish face is also happening when I saw the baby from other ethnic groups.

“The hallmark of this face makes people to be more gentle and protective of the baby, especially the elderly and families. According to the law of evolution, these characteristics increase the likelihood of infant survival. Other studies have found that babies who are less adorable as having small eyes, flat forehead, and square faces tend not to get attention, “said Lu Zhu Luo as reported by Psychology Today.

The children begin to lose some of the characteristics of its appeal when no longer needed it to survive. An interval of 4-5 years may be agreed time human ancestors to wait the next birth.