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Study finds using phones before bed significantly increases poor sleep risk due to blue light's effect on melatonin.
A study by King Saud University involving 435 adults found that using smartphones for 16 to 30 minutes before bed increases the risk of poor sleep quality by two-fold, rising to more than three-fold for 31 to 45 minutes of use.
The blue light from phones suppresses melatonin, vital for sleep.
Sleep consultant Rosey Davidson recommends limiting screen time an hour before bed and not using phones right after waking to improve sleep and mental health.
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El estudio encuentra que el uso de teléfonos antes de acostarse aumenta significativamente el riesgo de sueño pobre debido al efecto de la luz azul sobre la melatonina.