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Monday 16 Nov 2015 - 18:28 Makkah mean time-4-2-1437
(Image from Telegraph)
London (IINA) - An expert of children's sleep medicine and neuro-disability Professor Paul Gringras argued that phones and tablets should provide a new setting mode that can filter out the blue light, which delays the body clock and keeps people awake later into the evening, BBC reported.
Gringras said that manufacturers must show more responsibility, noting that most of the new models were "bluer and brighter".
He elaborated that the body starts to produce the sleep hormone melatonin in the evening, saying that certain wavelengths of light, those at the blue-green end of the spectrum, can disrupt that system.
Gringras was part of a study analyzing light emitted by devices. The study was published at Frontiers in Public Health. The study said that there is a clear trend for new devices to be bigger, brighter, having higher levels of contrast and emitting more blue light.
"That is great for use in the day but awful for use at night," Gringras said. "There is converging data to say if you are in front of one of these devices at night-time it could prevent you falling asleep by an extra hour".
AG/IINA
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