When the eyes are exposed to bright screens during the evening, the brain may interpret the light as daytime. As a result, melatonin production decreases, making it harder to fall asleep naturally.
Many people notice the effects without realizing the cause. They may spend 20 minutes checking messages before bed and suddenly find themselves awake much later than planned. Others struggle to fall asleep despite feeling tired.
Over time, repeated disruption of melatonin production can affect both sleep duration and sleep quality.
The Problem Doesn't End When the Screen Turns Off
Many people assume that once they stop using their phones and place them beside the bed, the problem is solved.
Unfortunately, experts say the issue may continue throughout the night.