Chennai: From the moment people wake up to the time they fall asleep, smartphones have become inseparable from daily life. While many celebrate living in a “smart” world, recent studies are warning that excessive phone use may gradually alter how the brain functions.
Researchers say prolonged screen time is linked to increased distraction, weaker memory and reduced decision-making ability. The reports point to the brain’s reward system, where repeated unlocking, scrolling and social-media “likes” can trigger dopamine release—creating short-lived pleasure that may reinforce compulsive checking.
The article notes that heavy use can affect the prefrontal cortex, a region associated with focus, self-control and decision-making. As a result, people may struggle to concentrate deeply, think beyond the surface and remember even small details.
Another concern highlighted is the pull of “instant gratification” content such as reels and social feeds, which can push long-term goals—studies, work and sleep—into the background. Blue light exposure is also flagged for disrupting sleep and potentially affecting the hippocampus, contributing to anxiety and forgetfulness.
To regain control, the report suggests a four-week “brain reset”: in weeks 1–2, observe when and why you reach for the phone (boredom or stress). In weeks 3–4, make small changes such as avoiding the phone for an hour after waking, keeping it in another room at night, and replacing urges with a walk or breathing exercises. Experts also recommend turning off unnecessary notifications, practising “digital hygiene” and staying physically active.
