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Greater exposure to the blue light emitted from phones and computers accelerates ageing, research has suggested.
An Oregon State University study on fruit flies found that soaking up the LED waves decays brain cells.
Scientists - Blue - Eyes - Process
Scientists observed that just being exposed to the blue light - even if it is not shining directly into your eyes - can speed up the aging process.
Professor Jaga Giebultowicz, the lead author, said that the artificial light slashed the fruit flies' lifespan 'dramatically'.
Study - Effects - LED - Waves - Species
His study examined the effects of these common LED waves on this species of insect because it shares the same cellular traits as humans.
Flies exposed to two daily 12-hour cycles of blue light and darkness lived up to 15 per cent shorter lives than insects which constantly lived in total darkness or natural light.
Ones - Blue - LED - Damage - Brain
The ones which were exposed to the blue LED suffered damage to their brain neurons and retinal cells which manifested itself in a diminished ability to climb walls.
Even relatively mild light shaved off five to 15 per cent of the fruit flies' lifespans.
Professor - Giebultowicz - Result - Humans - Brain
However, Professor Giebultowicz points out that this result cannot be applied to humans as the human brain 'would receive much less light than fly brains'.
As well as fully-functioning flies, some of the insects in the study were mutants which did not have eyes.
Flies - Blue - Light - Brain - Damage
But these mutant flies which were exposed to the blue light also suffered brain damage, suggesting that the harmful effects of the waves are not solely the result of them beaming into your eyes.
The authors said that natural light is crucial for healthy humans and animals as it stimulates the body clock which in turn regulates brain activity, hormone production and cell regeneration.
Research - Assistant - Eileen
However research assistant Eileen...
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