Inclusion Criteria:  age between 18 and 75 years Presence of a confirmed diagnosis of Crohn's disease In remission (not longer than 12 months, or mild to moderate clinical activity (HBI < 16) Medication that has been stable for at least 3 months, regardless of whether glucocorticoids, immunosuppressive drugs, azathioprine, or other drug treatments according to MBMCrohn - Version 1.0 from 06.12.2019 Page 7 Guideline Signed declaration of consent  Exclusion Criteria:  infectious or refractory Crohn's disease with severe course Complete colectomy Severe psychological illness (e.g. depression requiring treatment, addiction, schizophrenia) Severe comorbid somatic disease (e.g. diabetes mellitus, oncological disease) Pregnancy Participation in stress reduction programmes or clinical studies on psychological interventions