Depression is one of the leading causes of ill health worldwide, affecting more than 280 million people. For many, the path to relief — whether through medication, talking therapy, or both — can be slow, expensive, or simply out of reach. A major new review suggests there may be another route that is free, widely available, and already well within reach for millions.
The updated Cochrane review — conducted by researchers at the University of Central Lancashire in Preston, UK, and published in January 2026 — examined 73 randomised controlled trials involving nearly 5,000 adults with depression. It is the most comprehensive analysis of its kind to date, updating earlier reviews from 2008 and 2013 with 35 additional trials and more than 2,500 additional participants. The findings are striking: exercise produced moderate reductions in depressive symptoms compared with no treatment at all. When compared directly with psychological therapy, the evidence showed probably little to no difference in outcomes — a finding based on moderate-certainty evidence from ten trials. A comparison with antidepressant medication also suggested similar effects, though that evidence was more limited in scope and certainty.
Not all exercise is equal, the review found — but the bar is lower than many might expect. Light to moderate intensity activity may actually be more beneficial than vigorous exercise, making the findings accessible to a wide range of ages and fitness levels. The greatest benefits were associated with completing between 13 and 36 sessions, suggesting that consistency over time matters considerably. A combination of aerobic exercise and resistance training appeared more effective than aerobic activity alone — meaning that adding some gentle strength work alongside walking or cycling may produce better results than either on its own.
Adverse events from exercise were rare across the trials and mainly involved minor musculoskeletal issues such as muscle or joint discomfort. The review's authors were careful to note that the quality of many included studies was limited, with small sample sizes and short follow-up periods, which reduces overall confidence in the findings. Long-term effects remain uncertain — most studies only tracked participants during the treatment period itself.
The review's lead author, Professor Andrew Clegg, noted that exercise appears to be a safe, accessible option for managing depression symptoms — though it works better for some people than others. Depression is not a one-size-fits-all condition, and exercise is best understood as a powerful tool in a broader toolkit, not a universal solution. What the evidence now makes clear is that for millions of people, it deserves to be part of the conversation from the very beginning.