Physical activity in adolescents linked to improved mental health

New research highlights a strong link between physical activity in youth and improved mental health outcomes. A large-scale US study involving over 5,500 adolescents, conducted by King’s College London and the University of Massachusetts Amherst, found that higher daily step counts are associated with fewer emotional, behavioral, and attention-related issues one year later. Participants who averaged at least 12,000 steps per day showed the lowest levels of psychological distress, compared to those taking fewer than 5,000 steps.

Additionally, neuroimaging data suggested that increased movement may correlate with thicker cortical structures in brain regions responsible for emotion and sensory processing.

Separately, a long-term Australian study following over 1,000 individuals for 34 years found that superior cardiorespiratory fitness during adolescence is linked to a 15% lower relative risk of developing depression in adulthood. The protective effect of aerobic fitness was most pronounced five to ten years after initial testing, though the association persisted throughout the decades-long observation period. Researchers noted that this protective benefit was consistently stronger in females than in males.