| Studies |
Sample |
Methots |
Results |
| Farifteh et al.[11] |
experimental (n=23)
Control (n=14) |
laughter therapy for 20 to 30 minutes |
decreased the patient’ stress levels before chemotherapy (p=0.03) |
| Kim et al.[5] |
Experimental (n=31)
Control (n=29) |
four sessions of therapeutic laughter program |
single session for reducing anxiety (p < 0.01), depression (p < 0.01) and stress (p < 0.01) in breast cancer patients |
| Kim et al. [7] |
Experimental (n=31)
Control (n=29) |
laughter therapy 4 times for 2 weeks and each session lasted 60 min. |
Depression (p<0.01) , anxiety (p=0.04), stress (p<0.01) were decrease |
| Han et al.[15] |
Experimental (n=23)
Control (n=17) |
one hour laughter therapy consisting of dance, lots of laughter techniques, and meditation |
mood and anxiety were significantly improved.
No difference was found in serum cortisol. |
