Such information allows public health resources to focus on the problems that are relevant in a particular place, or for a given population or subpopulation. This needs to include the registration and monitoring of suicides and attempted suicide, breaking figures down by age, sex, and method. National suicide prevention strategies are also advocated using a comprehensive and coordinated response to suicide prevention. The early identification of mental disorders and substance abuse disorders, follow-up care for those who have attempted suicide, and responsible reporting by the media are all seen to be key in reducing the number of deaths by suicide. Limiting the availability of means such as pesticides and firearms is recommended by a World Health Report on suicide and its prevention. The study of suicide methods aims to identify those commonly used, and the groups at risk of suicide making methods less accessible may be useful in suicide prevention.

Gun-control measures in a number of countries have seen a reduction in suicides and other gun-related deaths. Other important measures are the introduction of policies that address the misuse of alcohol and the treatment of mental disorders. Some ways to do this include restricting access to pesticides, firearms, and known-used drugs. Making common suicide methods less accessible leads to an overall reduction in the number of suicides. Suicides are often impulse decisions that may be preventable by removing the means. Other common suicide methods include jumping from a great height, drug overdoses, and drowning. These are hanging, poisoning by pesticides, and firearms. Worldwide, three suicide methods predominate with the pattern varying in different countries.

Suicide attempts do not always result in death, and a nonfatal suicide attempt can leave the person with serious physical injuries, long-term health problems, and brain damage. A suicide method is any means by which a person chooses to end their life.

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