Physical activity alleviates symptoms of depression by promoting the release of chemicals like serotonin and endogenous opioids, which enhance mood and feelings of well-being. Engaging in regular exercise can serve as a natural antidepressant, helping alleviate feelings of sadness and anxiety. Additionally, physical activity increases social interaction, provides a sense of achievement, and reduces stress. It also promotes better sleep, which is essential for mental health. Overall, integrating regular physical activity into daily life can play a critical role in managing and reducing depressive symptoms.