Bad marriage raise heart disease risk

Results of many research/survey often reconfirm common senses (believes), they also provide you a quantitative sense and more details. Here is another example.

A lot of us feel/believe marital troubles and other ill personal relationships can cause our health. When a group of researchers looking at this issue, they test if study participants with bad relationships have any biological evidence of stress (inflammation, stress hormones) that could contribute to heart disease. In a study of 9,011 British civil servants, most of them married, "those with the worst close relationships were 34% more likely to have heart attacks or other heart trouble during 12 years of follow-up than those with good relationships. That included partners, close relatives and friends".