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Screen time showdown: 4-Week digital diet tested on youth mental health

NCT ID NCT07531290

Knowledge-focused Sponsor: University of Southern Denmark Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study will test whether reducing recreational screen use to 1 hour per day for 4 weeks can improve mental well-being, sleep, and social interaction in 240 young people aged 13 to 24. Participants will either cut their screen time or continue as usual, and researchers will track changes using questionnaires and wearable devices. The goal is to see if a simple digital detox can make a real difference in everyday life.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
screen media reduction (behavioural intervention)
What this could lead to
If it works, this could point toward a simple, low-cost way to boost mental well-being in young people by limiting recreational screen time.
What could go wrong
This is a small, early-stage study (240 participants) that hasn't started yet. Results may not apply to everyone, and participants might not stick to the screen limits.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 240 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Apr 2026

An estimate. Start dates often move.

Expected to finish

Dec 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

13 to 24 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Participants must have at least 2 hours/day of self-reported smartphone use during leisure time (data from the survey study) * Members of each participant's household must be willing to support the participant in adhering to the prescribed intervention (data from recruitment interview) * Participants must have enough discretionary leisure time for possible in-person activities on a weekly basis throughout the study period (verified at the information meeting) Exclusion Criteria: * Participants with no smartphone will be excluded (data from recruitment interview) * Participants with no social media profiles will be excluded (data from recruitment interview) * Participants who currently participate in other experimental studies will be excluded (data from recruitment interview) * Participants who have been hospitalized or prescribed sick leave within the past 3 months due to a mental illness will be excluded (data from recruitment interview)

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Conditions

The condition(s) this trial relates to.

Motor Activity Psychological Well-Being sleep disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Mental health Physical activity Sleep Social interaction Stress

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  2. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

More trials for these conditions

Other studies related to the condition(s) this trial covers.