From smart phones to laptops or any other digital devices, they all emit a light known as blue light. Blue lights are known to possess beneficial properties during daylight hours as they can boost attention, reaction times and mood but at night this becomes the most harmful light. And with the constant use of screens, exposure to blue wavelengths is becoming common causing sleep disruptions. As the sun sets, our bodies are programmed to release melatonin, a hormone that induces sleepiness. Artificial sources of blue light, such as electronic devices, can interfere with this process. The main impact is on the circadian rhythms as everyone has different circadian rhythms but the usual length is 24 and one-quarter hours. People who stay up late, their circadian rhythm become longer. Body’s internal clock gets confused, hence disrupting the sleep quality.
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