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Lower-Income Children Could Make Less Healthy Adults
The study was conducted at the Cornell University and involved 217 low- and middle-income white adolescents at age 9 and then again at age 13 in rural areas of upstate New York. Through it the researchers tried to determine several key mechanisms that explain how low socio-economic status takes its toll on health.
The research evaluated the neuroendocrine and cardiovascular markers of stress regulatory systems by measuring overnight levels of a stress hormone (cortisol) and blood pressure reactivity. They also measured recovery after an acute stressor (being asked unexpectedly to do mental math problems) in the kids.
The boffins assessed cumulative physical and social risk exposure by measuring crowding, noise and housing quality in conjunction with maternal and youth reports of family turmoil, youth separation from family and exposure to violence. They found that the longer 13-year-olds have lived in poverty, the less efficient their bodies become in handling environmental demands.
'We think that these mechanisms may be related to the fact that children who grow up in poverty have a steeper life trajectory of premature health problems than other children, regardless of their socio-economic status in adulthood,' said Gary Evans, the Elizabeth Lee Vincent Professor of Human Ecology and professor of human development and of design and environmental analysis in Cornells College of Human Ecology.
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