The Role of Physical Activity in Modulating Psychological, Neural, and Hormonal Structures Related to Violence: An Approach Based on Iranian Criminal Law

Authors
Seyedeh Leila Naqibzadeh
Mahmooud Habibitabar
Masoud Mostafapour
Abstract
The aim of this study was to investigate the effects of exercise interventions on reducing aggressive behaviors and to understand the associated biological, neural, and psychosocial mechanisms. Conducted as a systematic review and analysis of selected studies, primarily focusing on moderate to high-intensity aerobic exercise, the research examined hormonal markers, neurostructural changes, and psychosocial outcomes related to aggression. Findings revealed that regular exercise reduces cortisol levels and modulates testosterone ratio, while increasing endorphin secretion and enhancing serotonergic function, which collectively contribute to decreased irritability and impulsivity. Furthermore, regular exercise promotes neuroplasticity, elevates brain-derived neurotrophic factor (BDNF) levels, and increases hippocampal volume, leading to significant improvements in prefrontal cortex function, crucial for impulse regulation and response inhibition. Psychosocially, group exercises strengthen social support, enhance self-efficacy, and improve conflict resolution skills, fostering sustained reduction in aggressive behaviors. These results indicate that multidimensional exercise interventions have a significant role in aggression reduction and mental health promotion, providing a strong foundation for developing therapeutic and rehabilitative programs.
Keywords
Exercise interventions
aggression
emotion regulation
Neuroplasticity
Hormones
Social Support
mental health
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