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Study Finds Blocking Mobile Internet on Smartphones Boosts Attention, Mental Health, and Well-Being

By - Dr. Garima Soni
Published On 2025-02-20 02:45 GMT   |   Update On 2025-02-20 02:45 GMT
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Smartphones enable people to access the online world from anywhere at any time. Despite the benefits of this technology, there is growing concern that smartphone use could adversely impact cognitive functioning and mental health.
According to a recent research published in the PNA Nexus Journal, shows a link between smartphone usage and attention, mental health and well- being. Correlational and anecdotal evidence suggests that these concerns may be well-founded, but causal evidence remains scarce.
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The researchers conducted a month-long randomized controlled trial to investigate how removing constant access to the internet through smartphones might impact psychological functioning. They used a mobile phone application to block all mobile internet access from participants’ smartphones for 2 weeks and objectively track compliance. This intervention specifically targeted the feature that makes smartphones “smart” (mobile internet) while allowing participants to maintain mobile connection (through texts and calls) and nonmobile access to the internet (e.g. through desktop computers).
The intervention improved mental health, subjective well-being, and objectively measured ability to sustain attention; 91% of participants improved on at least one of these outcomes. Mediation analyses suggest that these improvements can be partially explained by the intervention's impact on how people spent their time; when people did not have access to mobile internet, they spent more time socializing in person, exercising, and being in nature. These results provide causal evidence that blocking mobile internet can improve important psychological outcomes, and suggest that maintaining the status quo of constant connection to the internet may be detrimental to time use, cognitive functioning, and well-being.
Ref: Noah Castelo, Kostadin Kushlev, Adrian F Ward, Michael Esterman, Peter B Reiner, Blocking mobile internet on smartphones improves sustained attention, mental health, and subjective well-being, PNAS Nexus, Volume 4, Issue 2, February 2025, pgaf017, https://doi.org/10.1093/pnasnexus/pgaf017
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Article Source : PNA Nexus

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Dr. Garima Soni

Dr. Garima Soni holds a BDS (Bachelor of Dental Surgery) from Government Dental College, Raipur, Chhattisgarh, and an MDS (Master of Dental Surgery) specializing in Orthodontics and Dentofacial Orthopedics from Maitri College of Dentistry and Research Centre. At medical dialogues she focuses on dental news and dental and medical fact checks against medical/dental mis/disinformation

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