psychotherapy:

…Published in 2005 in The Archives of General Psychiatry, the Glasers’ findings help explain epidemiological data showing that couples in troubled marriages appear to be more susceptible to illness than happier couples. The results may also have practical relevance for surgical patients, for instance, waiting for incisions to heal. But most important, the study offered compelling evidence that a hostile fight with your husband or wife isn’t just bad for your relationship. It can have a profound toll on your body.

Kiecolt-Glaser told me that the overall health lesson to take away from the new wave of marriage-and-health literature is that couples should first work to repair a troubled relationship and learn to fight without hostility and derision. But if staying married means living amid constant acrimony, from the point of view of your health, “you’re better off out of it,” she says…