AMES, Iowa -- Stress may indeed be a direct contributor to childhood obesity. That's according to a new Iowa State University study finding that increased levels of stress in adolescents are associated with a greater likelihood of them being overweight or obese.
The study of 1,011 adolescents (aged 10-15) and their mothers from low income families living in three cities -- Boston, Chicago and San Antonio -- was posted online by the Journal of Adolescent Health (http://www.jahonline.org/inpress) and will be published in its August issue. Forty-seven percent of the teens in the sample were overweight or obese, but that percentage increased to 56.2 percent among those who were impacted by four or more stressors.
"We found that an adolescent or youth who's more stressed -- caused by such things as having poor grades, mental health problems, more aggressive behavior, or doing more drugs and alcohol -- is also more likely to be overweight or obese," said lead author Brenda Lohman, an Iowa State assistant professor of human development and family studies (HDFS).
Susan Stewart, an ISU associate professor of sociology; and Steven Garasky, a professor of HDFS at Iowa State; joined Lohman on the research team. Former ISU faculty members Craig Gundersen, a member of the agricultural and consumer economics faculty at the University of Illinois; and Joey Eisenmann, a member of the kinesiology and pediatrics faculty at Michigan State University; also contributed to the study.
The study analyzes data obtained from the "Welfare, Children and Families: A Three-City Study" -- a six-year longitudinal investigation. Researchers measured the height and weight of the adolescents to determine their body mass index, which was subsequently used to determine weight status based on two widely used classification systems. Adolescent food insecurity status and individual, maternal and family stressor
|Contact: Mike Ferlazzo|
Iowa State University