# Adolescent lifestyle factors and cognitive health research

> Live situation record from CLSTR: https://clstr.news/situations/adolescent-lifestyle-factors-and-cognitive-health-research
> Updated: 2026-10-05T05:01:12.000Z. Sources: 6. Developments: 2.

Research utilizing data from the Adolescent Brain Cognitive Development (ABCD) study has identified several links between lifestyle factors and adolescent development in the United States.

One study involving 5,515 adolescents found that higher daily step counts are associated with improved mental health. Participants taking fewer than 5,000 steps per day exhibited the highest number of symptoms, such as anxiety and low mood, while those averaging 12,000 or more steps reported the lowest levels. These higher activity levels were also correlated with increased cortical thickness in brain regions responsible for movement and emotional regulation.

A study published in JAMA Network Open, utilizing electronic sensors to track activity over three weeks, further detailed this relationship. Researchers found that higher daily step counts were associated with fewer emotional and behavioral issues—including anxiety, low mood, and attention problems—one year later. While the research does not suggest that walking cures clinical depression or anxiety, it indicates a gradual relationship where increased movement correlates with better psychological well-being indicators. The data suggests that benefits continue to increase with higher step counts rather than hitting a plateau at lower levels.

Additional longitudinal research following over 11,000 youths between ages 9 and 17 examined the impact of cannabis use. The findings indicated that while some initial advantages were noted, cognitive progression slowed by mid-adolescence. By age 17, cannabis users generally showed lower performance in memory, processing speed, and inhibitory control.

## Timeline

### 2026-10-05: ABCD Study research links adolescent cannabis use and physical activity to cognitive health

Studies from the ABCD Study cohort link adolescent cannabis use to slower cognitive development and find that higher daily step counts are associated with better mental health and brain structure.

2 sources. https://clstr.news/cluster/abcd-study-research-links-adolescent-cannabis-use-and-physical-activity-to-cognitive-health

### 2026-09-30: Physical activity linked to improved adolescent mental health

Research involving over 5,500 U.S. adolescents suggests that higher daily step counts are associated with better mental health and increased cortical thickness in key brain regions.

4 sources. https://clstr.news/cluster/physical-activity-linked-to-improved-mental-health-in-adolescents

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Cite as: Adolescent lifestyle factors and cognitive health research. CLSTR, https://clstr.news/situations/adolescent-lifestyle-factors-and-cognitive-health-research