HomeHealthWhy you should sleep for 7 to 8 hours daily — Study

Why you should sleep for 7 to 8 hours daily — Study


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People who sleep less than five hours a night could be at 74 percent risk of developing peripheral artery disease (PAD), a study in the European Heart Journal said.

This was contained in the European Society of Cardiology (ESC) publication posted on its website on Thursday.

The study, authored by Dr. Shuai Yuan of the Karolinska Institute in Stockholm, Sweden, said that sleeping for seven to eight hours a night was a good habit for lowering the risk of PAD.

Yuan said that more than 200 million people globally have PAD, a condition where arteries in the legs are clogged, restricting blood flow and increasing the risk of stroke and heart attack.

Insufficient nighttime sleep and daytime naps have previously been associated with a raised risk of coronary artery disease, which, like PAD, is caused by clogged arteries.

“In addition, sleeping problems are among the top-ranked complaints among PAD patients.”

“There are limited data on the impact of sleep habits on PAD and vice versa, and our study aimed to fill that gap,” he said.

Yuan said that the study included more than 650,000 participants and was conducted in two parts.

“First, the researchers analyzed the associations of sleep duration and daytime naps with the risk of PAD.

“In the second part, the investigators used genetic data to perform naturally randomized controlled trials—called Mendelian randomization—to examine the causality of the associations,” he said.

Yuan said that the results indicate that a brief night’s sleep could raise the chance of developing PAD, and having PAD increases the risk of getting insufficient sleep.

According to him, more research is needed on how to interrupt the bidirectional link between short sleep and PAD.

Yuan said that lifestyle changes that help people get more sleep, such as being physically active, may lower the risk of developing PAD.

“For patients with PAD, optimizing pain management could enable them to have a good night’s sleep,” he said.



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