Insomnia associated with increased risk of heart
disease and stroke: Study
People suffering from insomnia may have a higher risk
of coronary artery ailment, heart failure,
and stroke, suggests a study. The study was published in the journal
Circulation. Previous observational studies have found an association between
insomnia, which affects up to 30 per cent of the general population, and an
increased risk of developing heart disease and stroke. However, the observational studies
were unable to determine whether insomnia is a cause, or if it is just
associated with them, explained Susanna Larsson, lead author of the study.
In this first-of-its-kind study on insomnia, Larsson
and a colleague applied Mendelian randomisation, a technique that uses genetic
variants known to be connected with a potential risk factor such as insomnia,
to reduce bias in the results. The 1.3 million participants with or without
heart disease and stroke were drawn from four major public studies and groups. Researchers
found genetic variants for insomnia were associated with significantly higher
odds of coronary artery disease, heart failure, and ischemic stroke,
particularly large artery stroke, but not atrial fibrillation.
“It is important to identify the underlying reason for
insomnia and treat it,” Larsson said. “Sleep is a behaviour that can be changed
by new habits and stress management.” A limitation of this study
is that the results represent a genetic variant link to insomnia rather than
insomnia itself. According to Larsson, it was not possible to determine whether
or not individuals with cardiovascular disease had insomnia.
26.08.2019
The difference between ordinary
and extraordinary is that little extra
Jimmy Johnson
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