For all those who got new iPads/tablets/kindle fires for christmas be warned they can effect the time and quality of your sleep.
In the health and science section of ‘ The Week ‘dated 10th January 2015 , it reported on a study from Harvard Medical School where 12 people were given either an iPad or a book to read for four hours for five consecutive nights. Those who had read from an iPad took 10 minutes longer, on average, to get to sleep; they spent less time in REM sleep ( good for brain development and memory consolidation ), and produced less melatonin – the hormone that controls the body’s day-night patterns. They were also significantly groggier in the mornings.This research adds to previous studies which have concluded that the short – wavelength enriched ‘blue’ light emitted by such devices suppresses the production of melatonin.
Sleep, as commented on in one of my earlier blogs, is an extremely important component of heath – not only for brain development, but for health and repair of tissues. Help us help you!
Note – The Kindle Paperwhite does not emit ‘blue’ light and is therefore fine for reading in bed.