Study aim: The effectiveness of mindfulness training on emotion regulation and general health of divorced women Design: This study is a quasi-experimental study with a pretest-posttest design and a control group on 40 divorced women. The samples are selected by convenience sampling and then randomly assigned to two groups of 20: intervention and control. The intervention group receives 8 sessions of mindfulness therapy, and the control group does not receive any intervention. This study is not a drug trial and has no phase. Settings and conduct: This study is conducted in Rasht on divorced women with a pretest-posttest design and a control group. The intervention group receives 8 mindfulness therapy sessions and blinding is not performed. Participants/Inclusion and exclusion criteria: Inclusion criteria: Having a death certificate of the spouse or an official divorce decree, at least 6 months have passed since the divorce, not receiving concurrent psychological services, and having at least a high school education, not having severe physical illnesses, not having severe mood and emotional illnesses, at least 20 years old and at most 50 years old. Exclusion criteria: Absence of more than two training sessions and willingness to withdraw from the research process. Intervention groups: This study is a quasi-experimental study with a control group. Participants are randomly assigned to two groups. The intervention group receives 8 sessions of mindfulness therapy, and the control group receives no intervention. Emotion regulation and general health are measured in the pre-test and post-test. Main outcome variables: Emotion regulation and general health