The Critical Role of In-Person Learning: How School Reopening Improved Children’s Mental Health During the COVID-19 Pandemic
The COVID-19 pandemic profoundly impacted children’s mental health, wiht widespread reports of increased anxiety, depression, and behavioral issues. While anecdotal evidence suggested a link between school closures and these challenges, rigorous, large-scale data was needed to understand the true extent of the impact. A groundbreaking new study from Harvard T.H.Chan School of Public Health,published December 8,2025,in Epidemiology,provides compelling evidence that reopening schools was directly associated with important improvements in children’s mental wellbeing. This research, representing one of the most extensive analyses to date, offers crucial insights for navigating future public health crises and underscores the vital role schools play in supporting children’s emotional and psychological health.
Understanding the pandemic’s Impact on Youth Mental Health
Prior to this study, the detrimental effects of the pandemic on youth mental health were well-documented. Existing research consistently showed a surge in emotional distress among children and adolescents. While many studies pointed to the potential benefits of returning to in-person learning, these investigations frequently enough relied on smaller sample sizes or subjective self-reporting, limiting their ability to draw definitive conclusions. As a board-certified pediatrician with over 15 years of experience in child and adolescent mental health, I’ve witnessed firsthand the escalating rates of anxiety and depression in young patients during this period, reinforcing the need for robust, data-driven research.
A Comprehensive Analysis: Methodology and Findings
This study addressed the limitations of previous research by analyzing health diagnoses and spending data for a substantial cohort of 185,735 children aged 5-18 across 24 California counties and 224 school districts. California’s varied reopening timelines, with closures lasting longer than in many other states, provided a unique “natural experiment” allowing researchers to compare outcomes between children in schools that reopened and those that remained closed. the data, sourced from the Healthcare Integrated Research database (including commercial insurance claims) and the California Department of Education, tracked mental health treatment and prescription fills related to anxiety, depression, and Attention-Deficit/Hyperactivity Disorder (ADHD).
The findings were striking. While the overall incidence of mental health diagnoses increased during the pandemic – from 2.8% to 3.5% – children returning to in-person school experienced a 43% reduction in the likelihood of receiving a new mental health diagnosis compared to the period before reopening. This positive trend encompassed all three conditions studied: anxiety,depression,and ADHD.
Furthermore, healthcare spending mirrored these improvements. Nine months after schools reopened, researchers observed:
* 11% decrease in non-drug medical spending related to mental health.
* 8% decrease in spending on psychiatric medications.
* 5% decrease in spending on ADHD-specific medications.
Notably, girls demonstrated the most significant improvements in mental health following school reopening, highlighting potential gender-specific vulnerabilities during periods of social isolation.
Why School Closures Were Detrimental: Unpacking the Contributing Factors
The study authors identified several key factors that likely contributed to the mental health challenges experienced by children during school closures. These included:
* Reduced Social Interaction: Schools provide a crucial environment for peer interaction and the advancement of social skills.
* disrupted Routines: Consistent sleep schedules, regular meals, and structured learning environments are essential for children’s wellbeing.
* Increased screen Time: Prolonged screen exposure is linked to increased anxiety, depression, and sleep disturbances.
* Poor Dietary Habits: Disruptions to school lunch programs and increased snacking can negatively impact nutritional intake.
* academic Struggles: Remote learning presented significant challenges for many students, leading to academic frustration and stress.
* family Stress: Economic hardship, increased parental stress, and confined living spaces contributed to a challenging home environment.
* Limited Access to School-based Mental Health Services: Schools frequently enough serve as a primary access point for mental health support for children.
Implications for Future Public Health Emergencies and Policy Recommendations
As Rita Hamad, the study’s senior author and professor of social epidemiology and public policy at Harvard T.H.Chan School of Public Health, emphasizes, “Our results provide solid evidence to parents, educators, and policymakers that in-person school plays a crucial role in kids’ well-being.” This research has significant implications for how we respond to future public health emergencies.
Prioritizing safe school reopenings is paramount. However, simply reopening schools isn’t enough. Policies must also focus on:
* investing in school-based mental health services: Increasing access to counselors, psychologists, and social workers within schools.
* supporting teachers in recognizing and responding to student mental health needs: Providing









