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flag 11 studies in Sleep Medicine Reviews find no significant impact of blue light from screens on sleep quality.

flag A new study in Sleep Medicine Reviews questions the impact of blue light from screens, such as smartphones and tablets, on sleep quality, finding no significant effect from 11 studies conducted worldwide. flag Clinical psychologist Michael Gradisar suggests that screens are overrated as a factor affecting sleep. flag The study challenges the long-held belief that using devices before bedtime can lead to sleep disturbances.

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