Happiness could reduce risks of heart disease
Source: Agencies |
February 19, 2010, Friday
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Print Edition
Print Edition
PEOPLE who are usually happy and enthusiastic are less likely to develop heart disease than those who tend to be glum, scientists said yesterday.
Researchers in the United States said their observational study was the first to show an independent relationship between positive emotions and coronary heart disease, but stressed that more work was needed before any recommendations could be made.
"We desperately need rigorous clinical trials in this area. If the trials support our findings, then these results will be incredibly important in describing specifically what clinicians and/or patients could do to improve health," Karina Davidson of Columbia University Medical Center wrote in the study in the European Heart Journal.
Heart disease is the leading killer of men and women in Europe, the United States and most industrialized countries. Together with diabetes, cardiovascular diseases accounted for 32 percent of all deaths around the world in 2005, according to the World Health Organization.
Over 10 years, Davidson and her team followed 1,739 men and women who were taking part in a large health survey in Canada.
Trained nurses assessed the participants' heart disease risk and measured negative emotions such as depression, hostility and anxiety, as well as positive emotions such as joy, happiness, excitement, enthusiasm and contentment - collectively known as a "positive affect."
The researchers ranked the "positive affect" across five levels ranging from "none" to "extreme" and found that for each rank the risk of heart disease fell by 22 percent.
Davidson, who led the research, said it might be possible to help prevent heart disease by enhancing people's positive emotions.
"Participants with no positive affect were at a 22 percent higher risk of heart attack or angina than those with a little positive affect, who were themselves at 22 percent higher risk than those with moderate positive affect," she wrote.
"We also found that if someone who was usually positive had some depressive symptoms at the time of the survey, this did not affect their overall lower risk of heart disease."
Davidson said people who are happier tended to have longer periods of rest or relaxation, and may recover more quickly from stressful events.
Researchers in the United States said their observational study was the first to show an independent relationship between positive emotions and coronary heart disease, but stressed that more work was needed before any recommendations could be made.
"We desperately need rigorous clinical trials in this area. If the trials support our findings, then these results will be incredibly important in describing specifically what clinicians and/or patients could do to improve health," Karina Davidson of Columbia University Medical Center wrote in the study in the European Heart Journal.
Heart disease is the leading killer of men and women in Europe, the United States and most industrialized countries. Together with diabetes, cardiovascular diseases accounted for 32 percent of all deaths around the world in 2005, according to the World Health Organization.
Over 10 years, Davidson and her team followed 1,739 men and women who were taking part in a large health survey in Canada.
Trained nurses assessed the participants' heart disease risk and measured negative emotions such as depression, hostility and anxiety, as well as positive emotions such as joy, happiness, excitement, enthusiasm and contentment - collectively known as a "positive affect."
The researchers ranked the "positive affect" across five levels ranging from "none" to "extreme" and found that for each rank the risk of heart disease fell by 22 percent.
Davidson, who led the research, said it might be possible to help prevent heart disease by enhancing people's positive emotions.
"Participants with no positive affect were at a 22 percent higher risk of heart attack or angina than those with a little positive affect, who were themselves at 22 percent higher risk than those with moderate positive affect," she wrote.
"We also found that if someone who was usually positive had some depressive symptoms at the time of the survey, this did not affect their overall lower risk of heart disease."
Davidson said people who are happier tended to have longer periods of rest or relaxation, and may recover more quickly from stressful events.
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