Do you know stress, insomnia associated with irregular heart rhythms after menopause? Study finds

According to recent research, one in every four women may develop abnormal heart rhythms – known as atrial fibrillation – after menopause, with stressful life events and insomnia being important contributors.

Washington [US], August 31 (ANI): According to recent research, one in every four women may develop abnormal heart rhythms – known as atrial fibrillation – after menopause, with stressful life events and insomnia being important contributors. The findings of the research published in the Journal of the American Heart Association, an open access, peer-reviewed journal of the American Heart Association.

Blood clots, stroke, heart failure, and other cardiovascular problems can result from atrial fibrillation. According to the American Heart Association, more than 12 million people in the United States are predicted to develop atrial fibrillation by 2030. "In my general cardiology practice, I see many postmenopausal women with picture perfect physical health who struggle with poor sleep and negative psychological emotional feelings or experience, which we now know may put them at risk for developing atrial fibrillation," said lead study author Susan X. Zhao, M.D., a cardiologist at Santa Clara Valley Medical Center in San Jose, California. "I strongly believe that in addition to age, genetic and other heart-health related risk factors, psychosocial factors are the missing piece to the puzzle of the genesis of atrial fibrillation."

Researchers reviewed data from more than 83,000 questionnaires by women ages 50-79 from the Women's Health Initiative, a major U.S. study. Participants were asked a series of questions in key categories: stressful life events, their sense of optimism, social support and insomnia. Questions about stressful life events addressed topics such as loss of a loved one; illness; divorce; financial pressure; and domestic, verbal, physical or sexual abuse. Questions about sleeping habits focused on if participants had trouble falling asleep, wake up several times during the night and  overall sleep quality, for example. Questions about participants' outlook on life and social supports addressed having friends to talk with during and about difficult or stressful situations; a sense of optimism such as believing good things are on the horizon; and having help with daily chores. "The heart and brain connection has been long established in many conditions," Zhao said. "Atrial fibrillation is a disease of the electrical conduction system and is prone to hormonal changes stemming from stress and poor sleep. These common pathways likely underpin the association between stress and insomnia with atrial fibrillation."

Researchers noted that stressful life events, poor sleep and feelings, such as depression, anxiety or feeling overwhelmed by one's circumstances, are often interrelated. It's difficult to know whether these factors accumulate gradually over the years to increase the risk of atrial fibrillation as women age. Chronic stress has not been consistently associated with atrial fibrillation, and the researchers note that a limitation of their study is that it relied on patient questionnaires utilized at the start of the study. Stressful life events, however, though significant and traumatic, may not be long lasting, Zhao notes. Further research is needed to confirm these associations and evaluate whether customized stress-relieving interventions may modify atrial fibrillation risk. (ANI)

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