3. Study design. The subjects will be randomly allocated to the cognitive-behavioural intervention (experimental group) and routine aftercare (control group), stratified with respect to repetition of DSH and gender.The study subjects are patients aged 15-35 who are referred to the Leiden University Medical Center, to MCH Westeinde (The Hague), or to local centers mental healthcare in Leiden (Rivierduinen)and The Hague (Parnassia PMC), following an act of DSH. DSH patients will be included if they recently have been engaged in an act of DSH including overdoses of medication, ingestion of chemical substances and self-inflicted injuries according to the definition which is used in the WHO/Euro Multicentre Study on parasuicide: "An act with non-fatal outcome in which an individual deliberately initiates a non-habitual behaviour, that without intervention from others will cause self-harm, or deliberately ingests a substance in excess of the prescribed or generally recognised dosage, and which is aimed at realising changes that the person desires via the actual or expected physical consequences" (Platt et al., 1992). DSH patients with severe psychiatric disorders requiring intensive long-term psychiatric treatment will be excluded.