Troublesome people trigger the release of stress hormones, which is detrimental over a period of years, a study found. Spouses, however, do not cause this harm For the study, published in the journal Proceedings of the National Academy of Sciences, the researchers surveyed 2,345 people aged 18 to 104. “Each person told us about the people closest to them, specifically who they confide in, spend time with, t... [2620 chars]