In today’s hyper-connected world, screens dominate our lives—but too much exposure may be reshaping our brains in troubling ways. Experts warn that blue light from phones and laptops suppresses melatonin, the sleep-regulating hormone, making it harder to rest. Poor sleep doesn’t just cause fatigue; it undermines learning, memory, and overall cognitive performance.

For children, the risks are even greater. Dr. Michael Rich, pediatrician at Boston Children’s Hospital, explains that young brains are constantly “wiring and pruning.” Excessive digital stimulation can disrupt this process, replacing rich real-world experiences with passive, screen-based input. This can delay healthy brain development and reduce opportunities for deeper cognitive growth.

Yet, experts emphasize balance rather than total avoidance. Outdoor play, reading, and even boredom are vital for nurturing imagination and problem-solving skills. As Dr. Rich notes, “Boredom is the space in which creativity happens.”

The takeaway: Limit evening screen time and encourage offline activities to safeguard sleep, brain health, and creativity.