The link between stress and an increased risk of heart disease could begin as early as people's teens, according to a study of 69 high-school seniors by researchers at the University of California, Los Angeles. The participants in the study kept daily records for a fortnight of conflict with their families, harassment by their peers and reprimands by their teachers. The researchers found that the more stressful episodes the youngsters recorded the higher their levels of a substance called C-reactive protein were. High levels of C-reactive protein have been linked to increased cardiovascular risk in adults.
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