Excessive sleep might be linked to heart health

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Islamabad (17th Dec, 2019): Study suggest that stroke, which is one of the leading causes behind death and disability in the United States, may be linked to excessive sleep. 

Recent study suggests that sleeping for longer hours considerably increases the risk of contracting cardiovascular health issues. It is believed that people who take longer naps in the day may be at a greater risk of having a stroke as compared to those who do not.

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Approximately, fifteen million people suffer from stroke globally each year while, almost six million of those are people die as a result of that stroke and nearly five million of those people also suffer from disabilities as a result of a stroke.It is estimated that an approximate, 7,95,000 people have a heart attack in the United States alone.

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Moreover, the list of factors that lead to a stroke can range from unhealthy lifestyle and choices such as smoking, or even preexisting conditions such as diabetes, respectively. According to the researchers who have been exploring sleep duration, excessive sleep is also a potential risk factor. Some studies have even found that too little or too much sleep can both be the leading cause of developing cardiovascular health problems.

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Based on the findings of this recent study, it is believed that sleep deprivation as well as sleeping for more than seven hours as a routine are both indicators for higher risk of stroke. Additionally, the study published in the journal of Neurology has discovered a link between daytime napping and long hours of sleep, with heart health. Dr. Xiaomin Zhang from China, who is an author for the study, believes that the risk for long sleepers is very high.

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Evaluating the data collected from almost 31,750 people within China, Dr. Zhang explains that none of the participants had a history of heart health despite being above the age of sixty. They answered questions about their sleep patterns and napping habits which were keenly followed by the research team for an average of six years. It was eventually inferred that nearly eight percent of the participants took naps that spanned a period of ninety minutes, and almost twenty-four percent were found to sleep longer hours during the night [at least nine hours or more]. From them the participants had nearly 1,557 strokes over the course of the evaluation.

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The researchers discovered that the participants who slept for more than nine hours, had a twenty-three percent likeness of experiencing a stroke compared to those who slept for seven to eight hours per night. Simultaneously, people who slept for less than seven hours or got a shuteye for eight to nine hours had no higher risk of stroke than those who slept for seven to eight hours. Interestingly, people who slept for longer than nine hours and napped for an added ninety minutes each day, had an almost eighty-five percent risk of having a stroke in comparison to those who chose to do so moderately.

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Consequently, it was discovered that the quality of sleep also plays a significant role as participants who reported to have had poor sleep were at an almost twenty-nine percent risk of experiencing a stroke in comparison to those who had better quality sleep. The results continued to be significantly clearer once the research team adjusted ‘potential confounders’ such as:

  • hypertension
  • diabetes
  • smoking

[bs-quote quote=”These results highlight the importance of moderate napping and sleeping duration and maintaining good sleep quality, especially in middle-age and older adults. ” style=”style-8″ align=”center” color=”#dd0000″ author_name=”Dr. Xiaomin Zhang” author_job=”Study Author”][/bs-quote]

According to Dr. Zhang, the limitations of the study include the need for more research. Additionally, it was inferred that the study was observational thereby it cannot be used to prove causality. It was further elaborated that self-reported data cannot be considered reliable as recorded data ensures observation of a patients’ sleep pattern.

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Dr. Zhang added that the results of the research may only apply to Chinese adults and not to individuals from other cultures. He explained that while more research is required to understand the increased risk of stroke, prior studies show that long nappers and sleepers have “unfavorable changes” in levels of cholesterol and waist circumference, which are both predominantly factors of stroke.

[bs-quote quote=”In addition, long napping and sleeping may suggest an overall inactive lifestyle, which is also related to increased risk of stroke.” style=”style-8″ align=”center” color=”#dd0000″ author_name=”Dr. Zhang” author_job=”Study Author”][/bs-quote]

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