التيار الوطني الحر
Source: التيار الوطني الحر
14 Hrsالتيار الوطني الحر
Source: التيار الوطني الحر
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The American Heart Association recommends that most adults get 7 to 9 hours of sleep each night and keep consistent bedtimes and wake-up times. You can work out your bedtime based on when you need to wake up. Blood pressure typically falls by about 10 to 20 percent during sleep, and the absence of this drop has been linked to a higher risk of cardiovascular disease. A British study of around 88,000 people found an association between falling asleep between 10:00 and 10:59 p.m. and a lower incidence of these diseases, but it does not prove that this bedtime is right for everyone. A quiet, dark room, relaxing before bed, and limiting screens and caffeine in the evening can also help improve sleep.
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