For years, science has been reporting that our lack of zzz鈥檚 can stem聽from smartphone addiction, inconsistent sleep schedules聽or even a lousy聽mattress.聽Considering sleep keeps you聽healthy and boosts聽your creativity, there鈥檚 no reason why you shouldn鈥檛 want more of it. But it turns out that nabbing the perfect night鈥檚 rest might聽be out of your control.

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A study published in聽Psychosomatic Medicine: Journal of Biobehavioral Medicine聽reports that poor sleep quality could be tied to discrimination. The study surveyed 441 individuals from across the country, asking them not only about their health and sleep habits, but also about their daily experiences with discrimination. The study defined 鈥渄iscrimination鈥 as any perceived instances of disrespect, insults or harassment. The results might not be so shocking if you鈥檝e ever spent the night tossing and turning after experiencing intolerance.

Even after researchers took age, sex and mental and physical health聽into account, they discovered that individuals who reported instances of discrimination were 12 percent more聽likely to experience聽lower聽sleep efficiency (AKA fewer sleep cycles) and nine percent more likely to experience a lower quality of sleep.

The study supports previous research that linked聽chronic sleep problems to discrimination, and it could open the way for more studies into how doctors can help patients get聽a better night鈥檚 sleep.聽Until then, investing in聽sleep gadgets聽that can help聽you reach dreamland faster might not be such a bad idea.

What鈥檚 your foolproof method for getting a good night鈥檚 sleep? Tweet us @BritandCo and let us know!

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