The use of eBook with its own light or other light sources such can change the circadian rhythms and negatively affect the dream , according to a study published today in the journal Proceedings of the National Academy of Sciences of the United States of America .
The dim light during sunset is important for circadian rhythms, allowing the production of Melatonin , a substance that regulates sleep.
To examine the effect caused in the dream the bright artificial light , such as producing electronic bo oks with their own light, a group of researchers, led by Anne-Marie Chang, Brigham Hospital, compared the sleep quality of a group of people reading e-books as much paper.
During the study, a dozen people read, in dim light, for five consecutive days an eBook with own lighting, four hours before bedtime, and then did the same but with a printed book.
Chang explained that when study participants read an “e-book” self-illuminating “They took longer to fall asleep, had less drowsiness during dusk, secrete less melatonin and the next morning alertness was reduced,” which when reading a traditional book.
When using an electronic book reader, according to the study, research participants showed levels contents of Melatonin at dusk and changes in circadian rhythms of sleep and wakefulness.
kal
No comments:
Post a Comment