Compared to aerobic exercise , no short- or medium-term group differences in depression severity was found .
Higher short-term depression severity was found for yoga compared to electro-convulsive therapy ;  remission rates did not differ between groups .
No short-term group differences occurred when yoga was compared to antidepressant medication .
Conflicting evidence was found when yoga was compared to attention-control interventions , or when yoga as an add-on to antidepressant medication was compared to medication alone .
This review found some evidence for positive effects beyond placebo and comparable effects compared to evidence -based interventions .
BACKGROUND The purpose of this review was to investigate the efficacy and safety of yoga interventions in treating patients with major depressive disorder .
A pilot study of yogic meditation for family dementia caregivers with depressive symptoms: effects on mental health, cognition, and telomerase activity.
BACKGROUND This study examined the effects of brief daily yogic meditation on mental health , cognitive functioning , and immune cell telomerase activity in family dementia caregivers with mild depressive symptoms . METHODS Thirty-nine family dementia caregivers ( mean age 60.3 years old ( SD = 10.2 ) ) were r and omized to practicing Kirtan Kriya or listening to relaxation music for 12 min per day for 8 weeks . The severity of depressive symptoms , mental and cognitive functioning were assessed at baseline and follow-up . Telomerase activity in peripheral blood mononuclear cells ( PMBC ) was examined in peripheral P BMC pre-intervention and post-intervention . RESULTS The meditation group showed significantly lower levels of depressive symptoms and greater improvement in mental health and cognitive functioning compared with the relaxation group . In the meditation group , 65.2 % showed 50 % improvement on the Hamilton Depression Rating scale and 52 % of the participants showed 50 % improvement on the Mental Health Composite Summary score of the Short Form-36 scale compared with 31.2 % and 19 % , respectively , in the relaxation group ( p < 0.05 ) . The meditation group showed 43 % improvement in telomerase activity compared with 3.7 % in the relaxation group ( p = 0.05 ) . CONCLUSION This pilot study found that brief daily meditation practice s by family dementia caregivers can lead to improved mental and cognitive functioning and lower levels of depressive symptoms . This improvement is accompanied by an increase in telomerase activity suggesting improvement in stress-induced cellular aging . These results need to be confirmed in a larger sample
Compared to aerobic exercise , no short- or medium-term group differences in depression severity was found .
Higher short-term depression severity was found for yoga compared to electro-convulsive therapy ;  remission rates did not differ between groups .
No short-term group differences occurred when yoga was compared to antidepressant medication .
Conflicting evidence was found when yoga was compared to attention-control interventions , or when yoga as an add-on to antidepressant medication was compared to medication alone .
This review found some evidence for positive effects beyond placebo and comparable effects compared to evidence -based interventions .
BACKGROUND The purpose of this review was to investigate the efficacy and safety of yoga interventions in treating patients with major depressive disorder .