Washington: Researchers including an Indian-origin scientist have linked parental stress to weight gain in children.
The study found that children whose parents have high levels of stress have a Body Mass Index, or BMI, about 2 per cent higher than those whose parents have low levels of stress.
Children with higher parental stress also gained weight at a 7 per cent higher rate during the study period than other children.
Those figures may sound low, said lead author Dr. Ketan Shankardass, but they're significant because they are happening in children, whose bodies and eating and exercise habits are still developing. Plus, if that weight gain continues and is compounded over a lifetime, it could lead to serious obesity and health issues.
Dr. Shankardass, a social epidemiologist with the hospital's Centre for Research on Inner City Health, studied data collected during the Children's Health Study, one of the largest and most comprehensive investigations into the long-term effects of air pollution on the respiratory health of children.
The childrens' BMI was calculated each year. Their parents were given a questionnaire to measure their perceived psychological stress that asked how often in the last month they were able or unable to control important things in their life and whether things were going their way or their difficulties were piling up so high they could not overcome them.
Dr. Shankardass noted that more than half the students followed in the California study were Hispanic, and that the effects of stress on their BMI was greater than children of other ethnic backgrounds.
The research has been published in the journal Pediatric Obesity.
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