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Hostility and chronic stress increases stroke risk, warn researchers


Stress, hostility and depression can significantly increase the chances of middle-aged and older adults having a stroke, US researchers have found.

Hostility alone more than doubled the likelihood of having a full-blown or transient ischaemic attack (TIA), their study found.

“Studies like this one show that psychological characteristics are equally important as traditional risk factors”

Susan Everson-Rose

Chronic stress increased stroke and TIA risk by 59%, and depressive symptoms by 86%.

Researchers used questionnaires to assess chronic stress, depressive symptoms, anger and hostility in 6,700 men and women aged 45 to 84.

Over a period of eight-and-a-half to 11 years, a total of 147 strokes and 48 TIAs occurred within the group.

The only trait not linked to a higher risk of stroke was anger, despite the strong association with hostility.

The researchers defined hostility as a “negative way of viewing the world” and measured it by assessing participants’ cynicism.

Study leader Dr Susan Everson-Rose, from the University of Minnesota, said: “There’s such a focus on traditional risk factors − cholesterol levels, blood pressure, smoking and so forth − and those are all very important, but studies like this one show that psychological characteristics are equally important.

“Given our ageing population, it’s important to consider these other factors that might play a role in disease risk,” she said.

“Stroke is a disease of the elderly predominantly, and so learning more about things that can influence risk for stroke as people age is important,” she added.

The findings are published online in the American Heart Association journal Stroke.

“It’s possible that positive coping strategies could ameliorate some of these associations or effects”

Susan Everson-Rose

Chronic stress was measured in five different areas relating to personal health, the health problems of close others, work or the ability to do a job, relationships and finances.

Based on participants’ answers, scores were allocated for depressive symptoms and anger levels.

The associations remained significant after accounting for age, race, sex, lifestyle and other factors known to influence stroke risk.

Dr Everson-Rose added: “One thing we didn’t assess is coping strategies.


Susan Everson-Rose

“If someone is experiencing depressive symptoms or feeling a lot of stress or hostility, we don’t know how they manage those, so it’s possible that positive coping strategies could ameliorate some of these associations or effects,” she added.

“We did not inquire about coping,” she said. “I would say that’s one of the tasks for future studies.”


Readers' comments (2)

  • michael stone

    I think this is more a case of 'confirms' personally - I've always thought that the effects of stress are under-examined by clinicians.

    I've wondered about how 'bad for you' it is, to be set on following all of the advice about 'having a healthy lifestyle', but then also worrying if you are getting that right or not.

    Unsuitable or offensive? Report this comment

  • Surprising more Staff Nurses aren't dropping like flies.

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