Good sleepers have lower risk of heart disease and stroke

This study included 7,200 participants of the Paris Prospective Study III (PPP3), an observational community‐based prospective cohort. Men and women aged 50 to 75 years and free of cardiovascular disease were recruited in a preventive medical centre between 2008 and 2011. The average age was 59.7 years and 62% were men. Participants underwent a physical examination and completed questionnaires on lifestyle, personal and family medical history, and medical conditions.

Questionnaires were used to collect information on five sleep habits at baseline and two follow up visits. Each factor was given 1 point if optimal and 0 if not. A healthy sleep score ranging from 0 to 5 was calculated, with 0 or 1 considered poor and 5 considered optimal. Those with an optimal score reported sleeping 7 to 8 hours per night, never or rarely having insomnia, no frequent excessive daytime sleepiness, no sleep apnea, and an early chrono-type (being a morning person). The researchers checked for incident coronary heart disease and stroke every two years for a total of 10 years.

At baseline, 10% of participants had an optimal sleep score and 8% had a poor score. During a median follow up of eight years, 274 participants developed coronary heart disease or stroke. The researchers analyzed the association between sleep scores and cardiovascular events after adjusting for age, sex, alcohol consumption, occupation, smoking, body mass index, physical activity, cholesterol level, diabetes, and family history of heart attack, stroke or sudden cardiac death. They found that the risk of coronary heart disease and stroke decreased by 22% for every 1 point rise in the sleep score at baseline. More specifically, compared to those with a score of 0 or 1, participants with a score of 5 had a 75% lower risk of heart disease or stroke.

The researchers estimated the proportion of cardiovascular events that could be prevented with healthier sleep. They found that if all participants had an optimal sleep score, 72% of new cases of coronary heart disease and stroke might be avoided each year.

Over two follow ups, almost half of participants (48%) changed their sleep score: in 25% it decreased whereas in 23% it improved. When the researchers examined the association between the change in score and cardiovascular events, they found that a 1 point increment over time was associated with a 7% reduction in the risk of coronary heart disease or stroke.

Dr. Nambiema said: “Our study illustrates the potential for sleeping well to preserve heart health and suggests that improving sleep is linked with lower risks of coronary heart disease and stroke. We also found that the vast majority of people have sleep difficulties. Given that cardiovascular disease is the top cause of death worldwide, greater awareness is needed on the importance of good sleep for maintaining a healthy heart.”

To read further on the benefits of a good night’s sleep, check out my Page -: How important is a good night’s sleep?



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4 responses to “Good sleepers have lower risk of heart disease and stroke

  1. My wife and I picked up new Sealy pillows the other day and they’re amazing. I thought they were way too big and puffy, but if we put them under our shoulders, too, the sleep we get is astonishingly good. We both wake up pain free and spry.

    Liked by 1 person

  2. Having sleep difficulties following my TBI injury, I was referred for a sleep study. I scored below sleep Apnea threshold when sleeping in my most common position. I scored just above the line and therefore was diagnosed with sleep Apnea. However, my oxygen level remained at 98% at all times. Therefore, there is no oxygen deprivation.
    The doctor had no interest (or expertise) in discussing my TBI as a factor in the diagnosis. I used a CPAP machine for a couple years and couldn’t get comfortable with it. I informed by family doctor that I quit using it and the reasons. I get a full 7 – 8 hours usually, and I sleep uninterrupted most of the time and feel better rested.
    As my TBI challenges lessen, my sleep function improves.

    Liked by 1 person

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