Older children may be smarter, study says
A study by the University of Edinburgh has indicated that older children have a greater capacity for thinking than younger ones, because parents encourage more first-born children in their early years of life.
To better understand the case, the researchers observed 5,000 children from birth to the age of 14. The children were evaluated every two years by performing reading recognition and imaging tests, as well as collecting information on economic and family environment conditions. The results of the study, published in The Journal of Human Resources, indicated that in the first year of life, the first-born had a higher score than their siblings on IQ tests. In addition, parents participated in fewer brain stimulation activities with their younger children, such as reading with them, playing instruments, and making crafts.
According to the researchers, although all parents believe they have given the same emotional support to all children, the truth is that older children receive a greater parental support, especially in tasks involving thinking skills.
For the researchers, parents change their behavior after the birth of other children, stimulating and participating less in activities with the youngest children. This may be the explanation for older children having better education and earnings when they reach adulthood. "Our findings suggest that major changes in parental behavior are plausible explanations for birth order differences observed in results of education and the labor market, "said Ana Nuevo-Chiquero, an economist at the University of Edinburgh.
To raise and raise a child it takes dedication, attention and a lot of patience, but when these tasks are performed by only one parent the responsibility becomes even greater. However, researchers have found that the division of child care can result in a happier relationship and a more active sex life.
According to one WHO's overweight is a worrying factor in Brazil. According to the agency, about 12.7% boys are overweight, while among girls that number reaches 9.4%. One of the factors is due to poor infant feeding. In addition, it is statistically proven that children currently do less physical activity.
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