How do peers and surroundings influence teens’ physical activity and mental health during summer break?

Researchers at Texas A&M University School of Public Health are beginning an innovative study sponsored by the National Heart, Lung and Blood Institute to examine how teenagers’ physical activity levels and mental health are influenced by their friends and environment during the summer months.

Using cutting-edge technology, the team led by Tyler Prochnow, PhD, assistant professor in the Department of Health Behavior at the School of Public Health, will observe 100 youth between 12 and 15 years old for a week, combining smartphone surveys, activity monitors and GPS data to paint a detailed picture of their daily lives. Participants will answer quick questions on their phones several times a day about who they’re with and where they are, while wearable devices record their movement and location. This unique approach will help uncover how social connections and neighborhood features, like parks or community centers, work together to affect teens’ activity levels when school is out.

“The built and social environments are deeply intertwined, each shaping the other in ways that profoundly impact youth well-being. A well-designed park or community center can become a hub for social interaction, fostering friendships that encourage physical activity. Conversely, strong social networks can transform even simple spaces into vibrant areas for play and exercise,” Prochnow said.

“Understanding this dynamic interplay is crucial in seeking to create environments that not only facilitate physical activity, but also support mental health by promoting social connections and a sense of community among our youth.”

Summer is a particularly challenging time away from the social structure and built environment supports schools provide that encourage and facilitate physical activity. The findings could lead to more effective strategies for keeping kids active and healthy during summer months, potentially addressing the concerning trend of decreased physical activity and increased mental health issues among youth.

“Summer isn’t just a break from school—it’s a pivotal time that can shape youth health habits,” Prochnow said. “By understanding how teens interact with their friends and environment during these months, we can develop targeted strategies to promote active, healthy summers that have lasting benefits.”