Face Difficulty Falling Asleep? Blame Your Smartphone or Tablet

The body starts to produce the sleep hormone melatonin as it starts getting darker in the evening. This helps people nod off. However, certain wavelengths of light, those at the blue-green end of the spectrum, can disrupt the circadian rhythm. A new study has revealed that people with smartphones and tablets should have 'bed mode' to protect sleep as their blue-light emission can keep them up at night.

Evelina Children's Hospital's Paul Gringras said, "Since every new model was 'bluer and brighter', the setting should filter out the blue light that delays the body clock and keeps people awake later into the evening. Manufacturers need to show more responsibility."

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‘New smartphones and tablets are bigger, brighter, have higher levels of contrast and emit more blue light. Exposure to this blue light can disrupt an individual's circadian rhythm, and people should have a 'bed mode' to protect their sleep.’

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The researchers concluded that there was a clear trend for new devices to be bigger, brighter, have higher levels of contrast and emit more blue light.

The study appears in Frontiers in Public Health.

Source-ANI

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