تاريخ النشر 23 مارس 2018     بواسطة الدكتور احمد عبدالله النعمي     المشاهدات 7

النوم والجوال

اوضحت الدراسات ان استخدام الاجهزة الالكترونية قبل النوم ب٤ساعات ياثر على افراز الميلاتونين ويسبب الارق Prolonged use of portable light-emitting devices (laptops, tablets, smartphones) before bedtime can have a negative impact on melatonin secretion, circadian rhythms, and sleep. One study compared
 the effects of reading an electronic book illuminated by a light-emitting device (LE-ebook) versus a printed book (by reflected light) for four hours prior to bedtime for five consecutive nights . Subjects in the LE-ebook group had suppressed melatonin concentrations in the early part of the night, a delayed endogenous circadian melatonin phase, felt less sleepy before bed, took longer to fall asleep, and reported feeling sleepier the following morning. These observations suggest that evening use of light-emitting devices may contribute to phase delays in the circadian clock and difficulty initiating sleep.


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