Inclusion criteria:
Having sinus tachycardia
Evidence of anxiety and certainty of anxiety diagnosis (by clinical interview and Beck anxiety questionnaire)
Not suffering from uncontrolled cardiac or non-cardiac underlying disease affecting the physical symptoms of anxiety (such as tachycardia), including hyperthyroidism, fever, hypoglycemia, pheochromocytoma, bleeding, consumption of stimulants such as caffeine, congenital cardiac arrhythmias such as AVNRT or AVRT or AF, heart failure, congenital heart disease, ischemic heart disease, rheumatic heart disease
Having a minimum literacy of reading and writing
Having consent to participate in the research
Belief and commitment to the fundamentals of Islam
Exclusion criteria:
suffering from a disease affecting the physical symptoms of anxiety during the study period
Failure to follow up treatment and failure to participate in two consecutive treatment sessions
The occurrence of an unexpected and extremely anxiety-provoking incident that takes a person out of the normal state (such as the experience of bereavement of loved ones, accidents, earthquakes, fires, etc.)