Depression may increase the risk of heart failure, a new study suggests.
Researchers looked at nearly 63,000 people in Norway who underwent physical and mental health assessments.
Over 11 years, close to 1,500 of the participants developed heart failure. Compared to people with no symptoms of depression, those with mild symptoms were 5 percent more likely to develop heart failure, and those with moderate to severe symptoms had a 40 percent increased risk.
“Depressive symptoms increase the chance of developing heart failure and the more severe the symptoms are, the greater the risk,” study first author Lise Tuset Gustad, an intensive care nurse at Levanger Hospital in Norway, said in a society news release.
“Depressed people have less healthy lifestyles, so our analysis adjusted for factors such as obesity and smoking that could cause both depression and heart failure,” she added. “This means we can be confident that these factors did not cause the association.”