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Blocking mobile internet on smartphones improves sustained attention, mental health, and subjective well-being

Castelo, Kushlev, Ward, Esterman, Reiner · 2025 · PNAS Nexus 4(2):pgaf017

What this work gives Aellic

Month-long randomised trial: blocking all mobile internet on participants' own phones for two weeks, with calls, texts and desktop internet still available and compliance tracked by app, improved subjective well-being, mental health and objectively measured sustained attention. Partly mediated by more time spent socialising in person, exercising and outdoors.

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