Screen-Time Before Bed Can Disrupt Sleep

 Digital screen time before bed can have a negative impact on the quality of your sleep. A US study found that as little as eight minutes of exposure to blue light keeps you mentally stimulated for over one hour, which tends to throw off the body's circadian rhythm or biological clock, Beijing Youth Daily reported.

The blue light from the screen suppresses melatonin.

Exposure to blue light suppresses the production of melatonin, a hormone that induces sleepiness. Melatonin release in the evening helps you relax before bedtime. Suppression of melatonin can cause you to stay up later and sleep less than you normally would.

The alerting properties delay REM sleep.

Seeing something right before bed that either makes you upset or happy can trigger a response that prolongs falling sleep, which consequently delays REM (rapid eye movement) sleep. These emotions can leave you staring at the ceiling for hours feeling wide awake.

Studies have also found that exciting or violent video games increase heart rate, make it harder to fall asleep, and impair sleep quality.

A writer named Daphne K. Lee was the first one to tweet about the whole word "revenge bedtime procrastination" saying, "a phenomenon in which people who don’t have much control over their daytime life refuse to sleep early in order to regain some sense of freedom during late-night hours".

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