Suicide is the act of intentionally causing one's own death. Mental disorders (including depression, bipolar disorder, schizophrenia, personality disorders, anxiety disorders), physical disorders (such as chronic fatigue syndrome), and substance abuse (including alcoholism and the use of and withdrawal from benzodiazepines) are risk factors. Some suicides are impulsive acts due to stress (such as from financial or academic difficulties), relationship problems (such as breakups or divorces), or harassment and bullying. Those who have previously attempted suicide are at a higher risk for future attempts. Effective suicide prevention efforts include limiting access to methods of suicide such as firearms, drugs, and poisons; treating mental disorders and substance abuse; careful media reporting about suicide; and improving economic conditions. Although crisis hotlines are common resources, their effectiveness has not been well studied.
The most commonly adopted method of suicide varies from country to country and is partly related to the availability of effective means. Common methods of suicide include hanging, pesticide poisoning, and firearms. Suicides resulted in 828,000 deaths globally in 2015, an increase from 712,000 deaths in 1990. This makes suicide the 10th leading cause of death worldwide.
Approximately 1.5% of all deaths worldwide are by suicide. In a given year, this is roughly 12 per 100,000 people. Rates of suicide are generally higher among men than women, ranging from 1.5 times higher in the developing world to 3.5 times higher in the developed world. Suicide is generally most common among those over the age of 70; however, in certain countries, those aged between 15 and 30 are at the highest risk. Europe had the highest rates of suicide by region in 2015. There are an estimated 10 to 20 million non-fatal attempted suicides every year. Non-fatal suicide attempts may lead to injury and long-term disabilities. In the Western world, attempts are more common among young people and women.
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Closely interfacing with bioengineering and medicine, this course provides foundational concepts in applying small-molecule chemical toolsets to probe the functions of living systems at the mechanisti
A suicide method is any means by which a person may choose to end their lives. Suicide attempts do not always result in death, and a non-fatal suicide attempt can leave the person with serious physical injuries, long-term health problems, and brain damage. Worldwide, three suicide methods predominate with the pattern varying in different countries. These are hanging, poisoning by pesticides, and firearms. Some suicides are impulse decisions that may be preventable by removing the means.
Self-harm is intentional behavior that is considered harmful to oneself. This is most commonly regarded as direct injury of one's own skin tissues usually without a suicidal intention. Other terms such as cutting, self-injury, and self-mutilation have been used for any self-harming behavior regardless of suicidal intent. The most common form of self-harm is using a sharp object to cut the skin. Other forms include scratching, hitting, or burning body parts.
Explores human behaviors and adaptations for survival, including food preferences, fear responses, and the evolutionary perspective on morning sickness.
Covers enzyme inhibition mechanisms, drug modes of action, targeted protein degradation using PROTACs, and the bump-hole method for protein-ligand engineering.
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