Thursday, August 18, 2016

Greenery in neighborhoods may reduce adolescent aggressive behavior

http://www.eurekalert.org/pub_releases/2016-06/e-gin062816.php

Public Release: 28-Jun-2016
Greenery in neighborhoods may reduce adolescent aggressive behavior
New study supports benefits of neighborhood greenspace on Southern California adolescents
Elsevier

A study to be published in the July 2016 issue of the Journal of the American Academy of Child and Adolescent Psychiatry (JAACAP) reports that adolescents in urban communities may have less aggressive behaviors if they live in neighborhoods with more greenery, such as parks, golf courses, or fields.

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The study found that 9-18-year-olds who lived in places with more greenery had significantly less aggressive behaviors than those living in neighborhoods with less greenery. Both short-term (one to six months) and long-term (one to three years) exposure to greenspace within 1,000 meters surrounding residences were associated with reduced aggressive behaviors. The behavioral benefit of greenspace equated to approximately two to two-and-a-half years of adolescent maturation.

The study also found that factors such as age, gender, race/ethnicity, socioeconomic status, parents' educational background, occupation, income level, or marital status, and whether their mother smoked while pregnant or was depressed, did not affect the findings.

Additionally, these benefits existed for both boys and girls of all ages and races/ethnicities, and across populations with different socioeconomic backgrounds and living in communities with different neighborhood quality.

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Based on the study's findings, USC investigators estimate that increasing greenery levels commonly seen in urban environments could result in a 12 percent decrease in clinical cases of aggressive behavior in California adolescents living in urban areas.

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