A. In today's digital world, adolescents are more connected than ever before. Smartphones, tablets, and laptops are central to their social and educational lives. However, a growing body of research is highlighting a significant downside to this constant connectivity: its negative impact on sleep. While many people are aware that using screens before bed is not advisable, the specific reasons for this are often misunderstood. This passage will explore not only the well-known biological effects but also the deeper cognitive and psychological mechanisms through which evening screen time disrupts the quality of adolescent sleep. B. The most frequently discussed reason for avoiding screens before bed relates to a biological process involving melatonin. Melatonin is a hormone naturally produced by the brain in response to darkness, and it plays a crucial role in regulating our sleep-wake cycle. It essentially sends a signal to the body that it is time to rest. The screens of electronic devices emit a high concentration of blue light, which is particularly effective at suppressing the production of melatonin. When an adolescent uses their phone or tablet in the evening, their brain inte…
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