IRCT20180523039804N1 IRCT 2018-08-06 Bojnourd University of Medical Sciences Anxiety and depression in women aged 50 to 70 Effectiveness of laughter yoga on anxiety and depression in women aged 50 to 70 2018-06-22 anticipated 60 Complete https://irct.ir/trial/31468 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Supportive, Other design features: In this study, it is not possible to blind subjects due to the nature of the intervention; and instead, to reduce bias, the co-researcher as assessor will be blind. But, there is no choice for the situation in which only the "assessor" is blind, Randomization description: Randomly allocating of the elderly to the intervention and control groups, using random numbers. N/A Condition 1: Depression. Condition 2: Anxiety. Intervention 1: In the intervention group, after training, participants will be asked to implement laughter yoga protocol for 8 weeks, 2 sessions in a week, and 90 minutes each session; and the level of their depression and anxiety will be measured using Beck Depression Inventory, and Beck Anxiety Inventory at the study onset, and end of the fourth and eighth weeks. Control group, will receive no intervention. Intervention 2: Control group: Receives no intervention. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is no more information