Moderate benefit from exercise to boost low mood
However, the reviewers noted although the update included seven additional trials, bringing the total reviewed to 39 trials involving 2326 people, many had methodological flaws.
If exercise does improve mood, no clear evidence has emerged on the optimum type, frequency and duration of exercise, they wrote.
The evidence suggested exercise may be as effective as psychological and pharmacological therapies, but these findings were based on only a handful of small, poor quality studies.
Cochrane Database of Systematic