Older adults with irregular sleep patterns may face higher risk of hardened arteries

Older adults with irregular sleep habits may face a higher risk for hardened arteries than their peers with regular bedtimes and hours of sleep, 新的研究表明.

这项研究周三发表在《沙巴足球体育平台》杂志上 美国心脏协会杂志, found adults 45 and older who fell asleep at different times each night and slept an inconsistent number of hours were more likely to develop atherosclerosis, a buildup of plaque in artery walls that can lead to a heart attack or stroke.

"Maintaining regular sleep schedules and decreasing variability in sleep is an easily adjustable lifestyle behavior that can not only help improve sleep, 还有助于降低老年人患心血管疾病的风险,该研究的主要作者凯尔西·富尔在沙巴足球体育平台发布会上说. Full is an assistant professor of medicine in the division of epidemiology at Vanderbilt University Medical Center in Nashville, 田纳西州.

Prior research has linked poor sleep habits – including getting too little, 睡眠过多或不完整——会导致心脏病, 肥胖, 2型糖尿病, high blood pressure and other cardiovascular disease conditions. The 美国心脏协会 recommends adults get seven to nine hours of sleep each night. 美国心脏协会最近增加了睡眠 生活的真谛, its list of recommended behaviors and factors for optimizing heart and brain health.

在新的研究中, 研究人员分析了超过200名美国人的睡眠习惯,000名男女, 平均年龄69岁, 谁参加了 动脉粥样硬化的多民族研究 2010年至2013年. 参与者来自美国六个州.S. communities, were free of cardiovascular disease when the sleep ancillary study began.

The participants wore wrist devices that detected when they were awake and when they were sleeping. They also completed a sleep diary for seven consecutive days and a one-night, 跟踪呼吸的家庭睡眠研究, 睡眠阶段, 心率和睡眠中断.

Sleep duration was measured by the total amount of time spent in bed fully asleep. Researchers also tracked the time participants fell asleep each night.

How much atherosclerosis a person developed was measured in several ways. Researchers analyzed calcified fatty plaque buildup in the arteries (coronary artery calcium), 颈动脉脂肪斑块积聚(颈动脉斑块), thickness of the inner two layers of the neck arteries (carotid intima-media thickness) and narrowed peripheral arteries (the ankle-brachial index).

与睡眠沙巴足球体育平台一致的参与者相比, those whose sleep duration varied by more than two hours within the same week were 1.4 times more likely to have high levels of coronary artery calcium, a major contributor to cardiovascular events such as heart attacks and strokes. 他们也是1.12 times more likely to have carotid plaque and nearly two times more likely to have abnormal results from an ankle-brachial index, which compares blood pressure at the ankle and in the arm to test for atherosclerosis and stiffness in the blood vessels.

Participants whose bedtimes varied by more than 90 minutes within the same week were 1.冠状动脉钙含量高的可能性是常人的43倍, 与那些就寝沙巴足球体育平台变化不超过30分钟的人相比.

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