Those with sleep timing that varies more than 90 minutes within a week were 1.4 times more likely to have calcium build-up in their coronary arteries, compared to those who nod off at roughly the same time (within a half hour) every night during the week. When sleep duration varied more than two hours in a week, participants were 1.2 times more likely to have carotid plaque and almost twice as likely to have signs of systemic atherosclerosis and stiffness in the blood vessels.Those with sleep durations that varied more than two hours within a week were 1.4 times as likely to have more calcified plaque in their arteries - “the main underlying cause of cardiovascular disease events,” including stroke and heart attack.Previous research has linked poor sleep quality to heart disease, high blood pressure, obesity, Type 2 diabetes and other heart-related challenges. “Maintaining regular sleep schedules and decreasing variability in sleep is an easily adjustable lifestyle behavior that can not only help improve sleep, but also help reduce cardiovascular risk for aging adults,” said study lead author Kelsie Full, Ph.D., an assistant professor of medicine in the division of epidemiology at Vanderbilt University Medical Center, in the release. Or the plaque may burst and create a blood clot that blocks the artery, which could lead to a heart attack or stroke.” In a release on the study, the association said that “the plaque can cause arteries to narrow, reducing blood flow and the amount of oxygen and other nutrients reaching the body. Those plaques lent atherosclerosis its nickname: hardening of the arteries. ![]() It’s one of the first studies to find a link between sleep habits and atherosclerosis, the buildup of fatty deposits on the walls of arteries. Irregular sleep patterns could put your heart health at risk.Ī peer-reviewed study out this week in the Journal of the American Heart Association finds that sleeping an inconsistent number of hours each night and variations in bedtime could raise the risk of developing atherosclerosis for those age 45 and older, compared to those whose sleep patterns are consistent.
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