Depression |
Thirteen studies with significant positive findings,11,21,33,34,61,63,65–73,93; only 2 with clinically diagnosed depression populations21,72
|
One study did not find effect on depressive symptoms63
|
Stress |
Four studies with significant positive findings,60 subjective stress measures,45,60–63 body temperature,62 and salivary cortisol levels45,60
|
One study did not find effect on subjective stress measures63
|
Anxiety |
Eight studies with significant positive effects67
|
One study had negative findings on anxiety35,63
|
Mood and psychological well-being |
Seven studies with significant positive effects93,94
|
One study did not find positive effect on mood66
|
Self-esteem |
One study with significant positive effects58
|
Two without positive effect65,95
|
Parkinson disease |
Three studies with significant positive effects89,90,96
|
|
TBI |
Two studies with significant positive effects91,97
|
None reported |
Sleep disturbance |
Three studies with significant positive effects67,83,91
|
None reported |
Substance abuse |
One study with significant positive effects86
|
None reported |
Cognitive functioning |
Two studies with significant positive effects88,98
|
None reported |