The largest analysis: a moderate effect, very low certaintyEmerging evidence
In a 2024 network meta-analysis (a review that compares many treatments at once) of 218 trials and 14,170 people with depression, yoga reduced symptoms by a moderate amount compared with groups such as usual care (33 trial groups, 1,047 people). That was close to walking or jogging and strength training, with mixed aerobic exercise and tai chi or qigong a little behind.
Only one study was at low risk of bias, so confidence was low for walking or jogging and very low for yoga and the rest. A published correction changed how the effects were calculated but not the findings.
Sources 5, 27
In diagnosed depression: better than doing nothingEmerging evidence
A 2024 review of 24 trials (1,395 people with a diagnosed depressive disorder) found yoga reduced symptoms more than passive comparisons such as a waiting list, by about 5 points on the rating scales, short of the 6.5 points the authors set as clinically meaningful. Against active comparisons such as other exercise or education, the difference wasn't clear. Remission was more likely with yoga against both. There were no differences in safety, and certainty ranged from moderate to very low.
Source 6
Earlier reviews point the same wayEmerging evidence
Yoga reduced depression compared with usual care across 12 trials (619 people), and compared with waiting lists, usual care and attention controls in people with a diagnosed mental disorder, with more sessions a week going with bigger reductions. Reviews in major depression found moderate effects from mostly small trials, another rated the certainty very low, and one in outpatients concluded that adding exercise or yoga may have small extra benefits.
Sources 28, 29, 30, 31, 32
Light helps, vigorous may help moreMixed evidence
In the network analysis, light activity such as walking or hatha yoga still had a meaningful effect, vigorous exercise did a little more, and yoga seemed to work better in groups and possibly for older adults. These come from comparisons between trials, which are less reliable than comparisons within them.
Source 5
Alongside antidepressantsEmerging evidence
In 122 people still depressed despite antidepressants, 10 weeks of weekly 80-minute hatha classes did no better than health education classes at 10 weeks. Over the 6 months of follow-up, though, the yoga group had fewer symptoms, and at 6 months 51% against 31% had responded (their symptoms had at least halved). Benefits may build over time.
Source 20
Without other treatmentEmerging evidence
In a small trial of 38 adults with mild to moderate depression and no other treatment, 8 weeks of twice-weekly 90-minute hatha classes reduced symptoms more than an education class, a large effect, and more people reached remission. In 101 people with depression or anxiety symptoms, 6 weeks of individualised yoga added to their usual care reduced depression scores compared with a waiting list, and the benefit was still there 6 weeks later.
Sources 21, 33
Heated and Bikram yogaEmerging evidence
In 80 people with moderate to severe depression, 8 weeks of heated hatha classes (people came to 10 on average) reduced symptoms much more than a waiting list: 59% against 6% responded. In 53 women, 8 weeks of Bikram yoga and of aerobic exercise each led to about 60% responding, against 7% on a waiting list. Both trials compared yoga mainly with a waiting list; the Bikram trial also had an aerobic exercise group.
Sources 23, 25
Older adultsEmerging evidence
In trials of older adults, yoga lowered depression scores compared with both inactive and active groups (8 and 4 trials), and in a second review of trials in older people living at home.
Sources 34, 35
Teenagers and after birthMixed evidence
In 27 studies of children and teenagers, 70% found some improvement in anxiety or depression, from weak to moderate studies, and a pilot trial found group yoga acceptable to teenagers with depression symptoms. After birth, yoga lowered a postnatal depression score by about 3 points across 6 trials (443 women), with results that varied a great deal from trial to trial.
Sources 36, 10, 37
Seasonal depressionMixed evidence
We found no trial of yoga for seasonal affective disorder (SAD). The NHS self-help advice for SAD includes getting as much natural daylight as you can and getting regular exercise, so a daytime class or a walk and yoga session outdoors fits that advice (our suggestion).
Sources 38, 39