COVID-19 Lockdowns Linked to Worsening Youth Mental Health, Studies Show

The COVID-19 pandemic and the subsequent lockdowns imposed worldwide have had a significant and lasting impact on the mental health of children and adolescents, according to a growing body of research. Studies indicate increased rates of anxiety, depression, and behavioral problems among young people, raising concerns about the long-term consequences of these disruptions.
Increased Anxiety and Depression
Multiple studies have highlighted a rise in anxiety and depression symptoms among children and adolescents during and after the COVID-19 lockdowns. A study published in BMJ Open compared the mental health of children before the pandemic to their mental health 15 months after school closures and lockdowns began. The results showed a significant increase in both anxiety and depressive symptoms. The median anxiety score increased from 24 before the pandemic to 31 during the pandemic. Additionally, the percentage of children reporting depression rose from 11% to 16%.
Ipsos Healthcare Advisory, in a 2024 study, found that youth anxiety and depression doubled globally during the pandemic. The World Health Organization (WHO) also reported a 25% increase in anxiety and depression worldwide during the first year of COVID-19, with young people being the most affected. The Ipsos study further noted that these mental health challenges have not dissipated with the end of "sheltering in place," with many college students still reporting poor mental health and seeking information on how to improve it.
Social and Emotional Difficulties
Beyond anxiety and depression, lockdowns have also been linked to increased social and emotional difficulties in young people. A University of Oxford study compared secondary school pupils who experienced three lockdowns with a group of students who participated in the same study before the pandemic. The findings, published in JAMA Network Open, revealed that students who went through the pandemic were more likely to experience increased depression, social, emotional, and behavioral difficulties, and worsening general mental well-being. Cases of high social, emotional, and behavioral difficulties increased by 7.9% in the pandemic cohort, compared to 3.5% in the pre-pandemic group.
Mental healthcare providers have also reported increased levels of social awkwardness and unease among younger patients since COVID-19. Reduced exposure to in-person social situations has hindered the development of social skills in this generation, making it difficult for some to transition back to pre-pandemic social norms.
Accelerated Brain Maturation
A University of Washington study published in the Proceedings of the National Academy of Sciences found that the pandemic resulted in unusually accelerated brain maturation in adolescents. The study measured brain maturation by the thickness of the cerebral cortex, which naturally thins with age. Chronic stress and adversity are known to accelerate cortical thinning, which is associated with an increased risk for the development of neuropsychiatric and behavioral disorders. The mean acceleration was 4.2 years in females and 1.4 years in males. Researchers suggest that the greater impact on female brains could be due to differences in the importance of social interaction for girls versus boys, as girls often rely more heavily on relationships with other girls.
Factors Contributing to Mental Health Decline
Several factors contributed to the decline in youth mental health during the COVID-19 lockdowns. These include:
- Social Isolation: Lockdowns and school closures led to reduced social interaction, which is crucial for adolescent development. Teenagers, especially girls, rely on social connections for emotional support and identity formation.
- Disrupted Routines: The pandemic disrupted daily routines and activities, leading to feelings of uncertainty and loss of control.
- Increased Screen Time: With limited options for entertainment and communication, young people spent more time on electronic devices, leading to reduced in-person socialization and potential addiction.
- Family Stress: Lockdowns placed additional stress on families, particularly those with key workers, younger parents, or a history of mental health or physical health conditions.
- Academic Disruption: School closures disrupted engagement with the curriculum, especially for students without sufficient digital access or resources.
Long-Term Implications and Solutions
The long-term implications of the pandemic on youth mental health are still unfolding. Experts warn that prolonged mental health problems can inhibit cognitive development, with lasting consequences for this age group.
To address these challenges, experts recommend:
- Promoting Healthy Habits: Encouraging children to engage in healthy habits, such as exercise, balanced nutrition, and sufficient sleep, can help protect their mental health.
- Limiting Screen Time: Parents and educators should advise children to limit smartphone use and encourage other forms of social interaction.
- Fostering Social Connections: Policies that foster home connectedness, friendship, and a positive school climate can promote better mental health and adjustment among young people.
- Providing Mental Health Support: Schools and communities should provide access to mental health services and support for young people who are struggling.
- Ongoing Monitoring: Continuous monitoring of children's mental health can help prevent future problems.
The COVID-19 pandemic has cast a long shadow on the mental well-being of young people. By understanding the factors that contributed to this decline and implementing effective solutions, communities can help mitigate the long-term consequences and support the mental health of future generations.


