The debate around video gaming and its impact on mental health is as lively as ever. With nearly three billion people worldwide playing video games, the discussion has never been more relevant.
The World Health Organization’s inclusion of gaming disorder in the International Classification of Diseases (ICD-11) [1] sparked widespread concern, leading many to view gaming as a potential threat to mental well-being. Yet, recent research conducted in Japan offers a fresh perspective that challenges these assumptions.
Gaming’s unexpected benefits revealed
A study conducted between 2020 and 2022 in Japan set out to explore the effects of video gaming on mental health. This study used a unique approach by taking advantage of natural circumstances that emerged during the COVID-19 pandemic.
Supply chain disruptions led to a shortage of gaming consoles like the Nintendo Switch and PlayStation 5, causing retailers to use lotteries to distribute them.
This situation created a natural experiment, allowing researchers to compare the mental health of individuals who won the opportunity to purchase these consoles with those who didn’t.
The study, published in Nature Human Behaviour, involved 97,602 participants aged 10 to 69 years. It found that winning a console lottery had a measurable positive impact on mental well-being.
Specifically, console ownership and increased gameplay reduced psychological distress and improved life satisfaction by 0.1 to 0.6 standard deviations [2].
A closer look at the data
Participants who won the Nintendo Switch lottery experienced a reduction in psychological distress by approximately 0.2 standard deviations, while those who won the PlayStation 5 lottery saw a reduction of about 0.1 standard deviations.
These findings were consistent across different statistical methods, including multivariate regression and propensity score matching (PSM).
Additionally, winning a PS5 lottery increased life satisfaction by 0.2 standard deviations [2].
The study also explored the amount of time spent playing video games. Lottery winners increased their daily gaming time by around 0.5 hours, but notably, this increase did not extend to smartphone gaming.
This suggests that the benefits observed were specifically linked to playing games on these consoles, not just any form of digital gaming [2].
The age factor: Different consoles, different impacts
Interestingly, the study found that the impact of gaming on mental well-being varied depending on the type of console and the age of the players.
For younger individuals, particularly adolescents, the PlayStation 5 was less beneficial compared with the Nintendo Switch. This discrepancy could be due to the types of games typically associated with each console.
The Switch, often played in social settings with family or friends, appeared to foster more positive experiences for younger users.
On the other hand, the PlayStation 5, which is geared towards hardcore gamers, seemed to offer fewer psychological benefits to this age group [2].
For adults, the impact was different. The PlayStation 5 showed greater benefits, particularly for males and those without children.
The study suggests that the solitary nature of many PS5 games might appeal more to these demographics, providing a form of relaxation and escape that contributes to improved mental health [2].
Why this matters
This study is significant because it moves beyond the typical correlational studies that have dominated the conversation around gaming and mental health.
By leveraging a natural experiment, the researchers were able to provide stronger evidence of a causal relationship between video gaming and mental well-being.
The findings challenge the narrative that video gaming is inherently harmful and suggest that, under the right conditions, gaming can have a positive impact on mental health.
However, the study also underscores the importance of moderation. While gaming for up to three hours a day was associated with mental health benefits, the positive effects diminished when gaming extended beyond this period. This highlights the need for balance and mindful gaming practices [2].
Video gaming, often viewed with suspicion, may actually hold the potential to enhance mental well-being, particularly in contexts where social interaction and personal enjoyment are prioritized.
The key takeaway is that video gaming, like any other activity, can be part of a balanced and healthy lifestyle.
In the end, whether video gaming is beneficial or harmful depends on how it is integrated into daily life. This study from Japan offers a compelling argument that, with the right approach, video gaming can be a positive force for mental health.
[1] World Health Organization. Gaming disorder
[2] Nature Human Behaviour. Causal effect of video gaming on mental well-being in Japan 2020–2022


