Post-Concussion Screen Time and Recovery: What New Research Shows
Key insights: 60-second read
- Moderate screen use was associated with faster concussion recovery – approximately 141 minutes per day during the first three days was linked to 35% faster symptom resolution than very high exposure.
- But the study was observational, not experimental – it cannot prove that screen time causes faster recovery. Reverse causation is a plausible explanation.
- The relationship is non-linear – very low and very high screen exposure were both associated with slower recovery than moderate use.
- Individualised guidance is key – screen exposure should be guided by symptom tolerance rather than automatic restriction or unrestricted use.
Should teenagers completely avoid screens after a concussion? A recent study published in the British Journal of Sports Medicine has produced a surprisingly interesting finding: moderate screen exposure during the first few days after concussion was associated with faster symptom resolution than either very low or very high exposure.
This article breaks down what the research found, what it means, and why it is important to interpret the findings carefully.
On this page
1. Why This Study Is Interesting
Concussion management has changed considerably over the last decade. Older approaches often placed a strong emphasis on rest and reducing stimulation, sometimes including substantial restriction of screens and other cognitive activities.
The evidence has subsequently become more nuanced. Complete rest is no longer viewed as the ideal strategy for any injury - let alone concussion. And now, modern management tends to favour a gradual return to normal physical, cognitive, educational and social activities while monitoring symptoms.
This new study adds another interesting piece to that discussion because it suggests a relationship between screen exposure and recovery may not simply be:
"Less screen time = faster recovery."
Instead, the researchers observed a non-linear relationship, where moderate levels of screen exposure were associated with faster symptom resolution than both lower and higher levels.
2. What the Researchers Did
The researchers analysed data from 80 young people aged 11–17 years with a physician-diagnosed concussion. Participants were enrolled within 72 hours of their injury. The average age was 14.3 years, and approximately 65% were male. Most of the concussions were sport-related.
One of the particularly interesting features of this study was how screen exposure was measured. Rather than relying entirely on participants remembering and reporting how much time they spent on screens, participants wore a small wearable camera called a Narrative Clip.
The camera automatically captured high-resolution images every 30 seconds for seven days. This allowed researchers to identify and quantify out-of-school screen exposure.
The researchers categorised screen activity into four types:
- Smartphone use
- Television
- Computer or tablet use
- Gaming
Participants were then followed until their symptoms resolved or until 45 days after their injury, whichever came first.
A note about these numbers: These categories should not simply be added together to calculate total screen time. Screen activities can overlap – for example, a person could use a smartphone while watching television.
3. The Surprising Finding
The most interesting analysis examined screen exposure during the first three days following concussion.
After adjusting for potentially influential factors, approximately 141 minutes of daily screen time was associated with a 35% faster rate of symptom resolution than approximately 260 minutes per day.
| Daily Screen Exposure | Association with Symptom Resolution |
|---|---|
| <120 minutes/day | Slower symptom resolution compared with the moderate-use group. |
| 120–240 minutes/day | Associated with faster symptom resolution in the exploratory analysis. |
| >240 minutes/day | Generally associated with slower resolution than the moderate-use group. |
Important statistical nuance: The comparison between 120–240 minutes and >240 minutes did not reach conventional statistical significance. Therefore, it would be inappropriate to say that the study definitively proved moderate screen exposure was better than high screen exposure.
4. What the 141-Minute Figure Actually Means
The researchers' model identified approximately 141 minutes per day as the level associated with the highest rate of symptom resolution in this cohort during the first three days.
"It is an association, not a prescription. The study was observational. Participants were not randomly assigned to receive 141 minutes, 60 minutes, 240 minutes or unrestricted screen exposure."
This does not mean that researchers have established that every teenager with concussion should use a screen for exactly 141 minutes per day. The study was observational, and consequently, it cannot establish that changing screen exposure to 141 minutes would actually cause faster recovery.
5. Could the Relationship Work in Reverse?
Absolutely – and this is one of the most important limitations to consider.
Imagine two teenagers who both sustain a concussion. One has relatively mild symptoms and feels well enough to use their phone and watch television. The other has a severe headache, dizziness and marked light sensitivity, making screen use unpleasant or intolerable.
The first teenager might recover more quickly and also happen to spend more time on screens. If we simply observe the two people, we might conclude that more screen time was associated with faster recovery. But that does not prove the screen time caused the faster recovery.
Key Point: People who were recovering better may have been more capable of tolerating screen exposure.
6. Does the Type of Screen Matter?
The researchers also explored whether different types of screen activity were associated with different recovery patterns. The findings suggested that screen type may matter, although these analyses were exploratory.
Smartphones: Participants averaging approximately 120–240 minutes of smartphone use per day had faster symptom resolution than those reporting less than 120 minutes per day or more than 240 minutes per day.
Television: Approximately 60–120 minutes of television per day was associated with faster symptom resolution compared with more than 120 minutes per day.
Computers/tablets and gaming: Computer/tablet use and gaming were not significantly associated with faster symptom resolution in the analyses reported by the researchers.
Why this matters: "Screen time" is not a single behaviour. Watching a television program, texting a friend, completing cognitively demanding schoolwork, scrolling social media and playing a fast-paced video game may place very different demands on vision, cognition, attention and arousal.
7. Major Limitations of This Study
- It was observational. The study cannot prove cause and effect.
- The sample was relatively small. Only 80 young people were included in the final analysis.
- The content of screen use was not fully captured. Knowing that somebody spent 60 minutes on a smartphone does not tell us what they were doing.
- School-related screen exposure was not the focus. The results do not represent every minute of screen exposure a young person may have experienced.
- Timing and pattern of exposure matter. Two teenagers could both accumulate 140 minutes of screen time but use it very differently.
- Screen time may be a marker of recovery rather than its cause. Reverse causation is an important alternative explanation.
8. My Take as a Physiotherapist
I think this is a fascinating study because it challenges an intuitive assumption: that reducing screen exposure as much as possible must automatically improve concussion recovery.
While this isn't strong enough evidence to lean us toward more or less screen time post-concussion, it does give us something to consider.
"Do what you can and listen to your body's limitations."
For an individual recovering from concussion, the appropriate amount of screen exposure will depend on their symptoms, tolerance, stage of recovery and broader rehabilitation plan - as will their return to post-concussion exercise.
And perhaps the most valuable lesson from this study is a broader one: avoiding everyday things altogether may not be as important as finding an appropriately tolerable level specific to each person, on any given day.
This study gives us another reason to question the idea that complete screen avoidance must automatically be better. But it does not definitively establish that complete avoidance is harmful, nor does it prove that 141 minutes is the ideal amount of screen time.
A more reasonable interpretation is that screen exposure should be individualised and guided by tolerance, rather than automatically prescribing either complete avoidance or unrestricted use.
If you are recovering from a concussion or supporting someone who is, the key is to stay engaged with normal life where possible, but always within the bounds of symptom tolerance. And when in doubt, consult a qualified health professional.
- Grant
Frequently Asked Questions
Does this study prove that screen time helps concussion recovery?
No. The study was observational, not experimental. It found an association between moderate screen exposure and faster symptom resolution, but it cannot prove that screen time caused the faster recovery. Reverse causation is a plausible explanation.
Should I let my teenager use screens after a concussion?
Screen exposure should be individualised and guided by symptom tolerance. If screen use causes a substantial or persistent worsening of symptoms, reducing the duration or intensity may be sensible. If they can comfortably tolerate a modest amount of screen-based activity, there may not be a compelling reason to eliminate it.
What is the "optimal" amount of screen time after concussion?
The study identified approximately 141 minutes per day as the level associated with the highest rate of symptom resolution in this specific cohort. However, this is an association, not a prescription. The optimal amount will vary from person to person based on their symptoms, tolerance and stage of recovery.
How does this research compare with previous studies?
Previous research has suggested that restricting screen exposure during the first 48 hours after concussion may shorten symptom recovery. This new study adds nuance by suggesting that the relationship between screen exposure and recovery may be non-linear – with moderate exposure associated with better outcomes than either very low or very high exposure.
One key insight from this research
"Moderate screen exposure was associated with faster symptom resolution than either very low or very high exposure. But the study was observational – it cannot prove that screen time causes faster recovery. Screens are not a concussion treatment."
Reference
Desai, N., Alshaikh, E., Yeates, K. O., Wheeler, K. K., Pommering, T., Smith, G. A., & Yang, J. (2026). Post-concussion screen time duration and type and its association with symptom resolution in youth aged 11–17 years. British Journal of Sports Medicine. DOI: 10.1136/bjsports-2025-110310
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