Sleeping for less than seven hours increase risk of heart attack

They measured expression of nine microRNAs previously associated with inflammation, immune function or vascular health. They found that people with insufficient sleep had 40 to 60 percent lower circulating levels of miR-125A, miR-126, and miR-146a than those who slept enough.

Why 7 or 8 hours seems to be the magic number is unclear," said DeSouza. "However, it is plausible that people need at least seven hours of sleep per night to maintain levels of important physiological regulators, such as microRNAs," he said.

It is possible that microRNAs in blood could be used as a marker of cardiovascular disease in people with insufficient sleep, enabling doctors to glean important information via a blood test rather than current, more invasive tests, researchers said.

Source: indianexpress.com

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