DSH is defined as intentional self-poisoning or self-injury, irrespective of motivation. Self-poisoning includes the intentional self-ingestion of more than the prescribed amount of any drug, whether or not there is evidence that the act was intended to result in death. This also includes poisoning with non-ingestible substances and gas, overdoses of "recreational drugs" and severe alcohol intoxication where clinical staff consider such cases to be an act of intentional self-harm (rather than recreational binge drinking). Self-injury is defined as any injury that has been intentionally self-inflicted, including self-cutting. The intention to end life may be absent or present to a variable degree. Other terms used to describe this phenomenon are "attempted suicide" and "parasuicide". Some acts of DSH are characterised by high suicidal intent, meticulous planning (including precautions against being found out), and severe lethality of the method used. Other acts of DSH are characterised by no or low intention of suicide, lack of planning and concealing of the act, and low lethality of the method used.