Why Not Catching Enough Zzz’s Is Bad for Your Heart

In another recent study, DeSouza's group found that adult men who sleep 6 hours per night have dysfunctional endothelial cells - the cells that line blood vessels - and their arteries don't dilate and constrict as well as those who get sufficient sleep. They found that people with insufficient sleep had 40 to 60 percent lower circulating levels of miR-125A, miR-126, and miR-146a, (previously shown to suppress inflammatory proteins) 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 7 hours of sleep per night to maintain levels of important physiological regulators, such as microRNAs." https://www.technologynetworks.com/genomics/news/why-not-catching-enough-zzzs-is-bad-for-your-heart-319652?utm_campaign=NEWSLETTER_TN_Breaking%20Science%20News&utm_source=hs_email&utm_medium=email&utm_content=72928395&_hsenc=p2ANqtz-8nKKE5bHqM1dwun6_Ikz_ifDrp3Itbod0MpQ_Jn0kVLsBLGwAm3yIajOuzddaLWy85zH5674gDEQUZhqsXtForGY6IBQ&_hsmi=72928395