If you're an adult with depression and anxiety, joining a supervised group exercise program might help reduce your symptoms—on average, people who finish the 19-week program feel noticeably better.

What we've found so far does not support the idea that supervised group exercise therapy improves depression and anxiety symptoms in adults over 19 weeks. Our analysis of the available evidence shows it leans against this benefit. We reviewed one assertion claiming that adults with depression and anxiety might feel noticeably better after completing a 19-week supervised group exercise program [1]. However, the evidence cited in support of this claim includes 0 studies that support it and 70.0 that refute it [1]. This means the data we’ve examined so far do not align with the idea that this type of exercise program leads to symptom improvement over this time period. It’s important to note that our current analysis is based on a limited set of assertions—just one—and the evidence tied to it strongly contradicts the claimed benefit. We cannot say whether other exercise formats, durations, or settings might help, because our review has only looked at this specific scenario. We also can’t explain why the 70.0 studies refute the effect—those details weren’t provided. Our analysis remains ongoing. As more evidence becomes available, our understanding may change. At this point, based only on what we’ve reviewed, the data do not suggest a positive impact of 19-week supervised group exercise on depression and anxiety symptoms in adults. Practical takeaway: If you’re dealing with depression or anxiety, starting an exercise program may still be worthwhile for overall health, but don’t expect a supervised group class over 19 weeks to reliably improve your mood based on what we’ve seen so far.