Miami Living Magazine

Natalie Portman

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Why are we so sleep deprived, and why does it matter? Surveys show that 40 percent of American adults get less than the nightly minimum of seven hours of sleep recommended by the American Academy of Sleep Medicine and the National Sleep Foundation. The National Institutes for Health estimate that between 50 million and 70 million people do not get enough sleep. These recommendations for minimal sleep are based on a review of many scientific studies evaluating the role of sleep in our bodies and the effects of sleep deprivation on our ability of our body to function at our peak performance level.body to function at our peak performance level. I am a neurologist at the University of Florida who has studied the effects of both traumatic brain injury and sleep impairment on the brain. I have seen the effects of sleep impairment and the significant effects it can have. According to the National Sleep Foundation, American adults currently average 6.9 hours of sleep per night compared with the 1940s, when most American adults were averaging 7.9 hours a night, or one hour more each night. In fact, in 1942, 84 percent of Americans got the recommended seven to nine hours; in 2013, that number had dropped to 59 percent. Participants in that same Gallup poll reported on average they felt they needed 7.3 hours of sleep each night but were not getting enough, causing an average nightly sleep debt of 24 minutes. Fitbit in January 2018 announced results of a study it conducted of 6 billion nights of its customers’ sleep and reported that men actually get even less than women, about 6.5 hours. Why sleep matters The problems caused by sleep shortage go beyond tiredness. In recent years, studies have shown that adults who were short sleepers, or those who got less than seven hours in 24 hours, were more likely to report 10 chronic health conditions, including heart disease, diabetes, obesity, asthma and depression, compared to those who got enough sleep, that is, seven or more hours in a 24-hour period. There are more challenges for children, as they are thought to have an increased

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