Three Weeks Under Two Hours a Day

This randomised controlled trial asked whether cutting screen time actually causes better mental health, rather than merely travelling alongside it. Just over a hundred healthy young adults, averaging more than four and a half hours of daily phone use, were assigned either to reduce their screen time to no more than two hours a day for three weeks or to carry on as normal. The reduction group came out ahead on depressive symptoms, sleep quality, perceived stress and overall wellbeing, with small-to-medium improvements that pointed to cause rather than coincidence. Because it was unblinded and conducted in students, the exact size of the benefit in a broader adult population is not settled, and knowing you are in the reduce group may itself help. Still, it is among the cleaner tests available. For a woman weighing whether a screen limit is worth the effort, it suggests a realistic ceiling, rather than a purge, can pay off across mood and sleep together within weeks.