Running May Train the Body to Handle Psychological Stress

A new study suggests regular aerobic exercise may ease mental health symptoms by lowering stress and repetitive negative thinking.

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A recent analysis of exercise research offers a closer look at why regular physical activity can help with mental health. Researchers examined data from 400 physically inactive adults receiving treatment for conditions including depression, panic disorder, agoraphobia, PTSD, or insomnia. The exercise program included supervised group sessions and about 30 minutes of moderate-to-vigorous outdoor running two or three times a week, followed by several months of continued aerobic exercise. Participants who received the exercise program showed lower perceived stress and less repetitive negative thinking than those in the comparison group at six and twelve months. Statistical analysis suggested that these changes helped explain the reduction in overall mental health symptoms. The researchers propose that exercise may give the body repeated, manageable exposure to physical stress signals, such as a faster heartbeat, while also pulling attention away from persistent negative thought loops. The findings do not mean running is a universal treatment or that it replaces established care. The study relied partly on self-reported outcomes, and participants knew they were taking part in an exercise intervention, which could have influenced their responses. Interestingly, the intervention did not produce a clear improvement in sleep quality in this mixed group. The research therefore points toward stress perception and repetitive negative thinking as potentially important pathways linking exercise with better mental health, while leaving room for further research.

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