We've all heard that you should be careful with your phones before going to bed, as they can disturb your restful sleep and keep the dream away. Blue light is blamed for all of these effects.
Health organizations around the world advise against touching or looking at it an hour before bed.
Dr. Michael Gradisar, a sleep expert at Flinders University in Australia, recently reviewed 11 studies and concluded that blue light is pretty diabolical. it's not like that Bad influence as claimed.
According to him, there is no evidence that the light emitted from the screen in the hour before bed makes it difficult to sleep. In fact, when considering the factors that can sabotage our sleep, screens are a bit of an overrated scapegoat.
This new research thus disproves that blue light inhibits the production of melatonin, a hormone that plays a crucial role in regulating sleep cycles. Well-known health organizations such as the NHS have long urged us to reduce screen time, which may be a rational suggestion, but it's not primarily caused by blue light.
According to Dr. Gradisar, the problem is not the light, but the fact that we constantly look at notifications, and this tense and alert state does not allow us to sleep.
Checking emails and scrolling through social media are really sleep stealers!
Professor Russell Foster, a neuroscience expert at the University of Oxford, echoes this view and says: There is no evidence that blue light emitted from screens has any significant effect.
However, it has good effects, increasing alertness, improving cognitive functions, and even positively affecting mood, but should be avoided due to prolonged exposure at night. After all, it contributes to eye strain, making them worse.
(Cover photo: Sebastian Gollnau/Image Alliance/Getty Images)
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