By Emma Spencer, Science & Technology Reporter

A sweeping study has found that exercise is significantly more effective than medication in treating depression—without the side effects tied to pharmaceutical use.

Researchers from the University of South Australia reviewed data from 97 major reviews, totaling over 128,000 participants. Their findings, published in the British Journal of Sports Medicine, revealed that physical activity improved symptoms of depression, anxiety, and distress at a rate 1.5 times greater than leading medications or counseling.

The strongest results were seen in programs lasting 12 weeks or less, highlighting how quickly the body can respond to movement. Moderate physical activities—such as walking, cycling, yoga, or resistance training—were shown to improve mood, increase focus, and stabilize emotional health. Participants who exercised just 150 minutes a week experienced consistent and lasting mental health improvements.

Unlike antidepressants, which often come with a long list of side effects including fatigue, weight gain, sexual dysfunction, emotional blunting, and withdrawal symptoms, exercise delivers results naturally. Researchers credited the improvement to the release of chemicals like endorphins, dopamine, and serotonin—compounds that regulate mood and motivation.

“Importantly, the research shows that it doesn’t take much for exercise to make a positive change to your mental health,” said lead author Dr. Ben Singh of UniSA. “We found that all types of physical activity and exercise were beneficial.”

The review concludes that physical activity should be considered a first-line approach for treating depression, anxiety, and related disorders. While psychiatric medications remain a standard recommendation in many medical settings, this study adds to a growing body of evidence suggesting that movement may be the most effective and accessible mental health intervention available today.

Your body isn’t just carrying your mind—it may be the key to healing it.