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  2. Caffeine - Wikipedia

    en.wikipedia.org/wiki/Caffeine

    Caffeine is the world's most widely consumed psychoactive drug. [20] [21] Unlike most other psychoactive substances, caffeine remains largely unregulated and legal in nearly all parts of the world. Caffeine is also an outlier as its use is seen as socially acceptable in most cultures and even encouraged in others.

  3. Psychoactive drug - Wikipedia

    en.wikipedia.org/wiki/Psychoactive_drug

    A psychoactive drug, mind-altering drug, or consciousness-altering drug is a chemical substance that changes brain function and results in alterations in perception, mood, consciousness, cognition, or behavior. [ 1 ] The term psychotropic drug is often used interchangeably, while some sources present narrower definitions.

  4. Caffeine-induced psychosis - Wikipedia

    en.wikipedia.org/wiki/Caffeine-induced_psychosis

    Caffeine-induced psychosis is a relatively rare phenomenon that can occur in otherwise healthy people. Overuse of caffeine may also worsen psychosis in people suffering from schizophrenia. [1] It is characterized by psychotic symptoms such as delusions, paranoia, and hallucinations. [2][3] This can happen with ingestion of high doses of ...

  5. Stimulant - Wikipedia

    en.wikipedia.org/wiki/Stimulant

    Caffeine is a stimulant compound belonging to the xanthine class of chemicals naturally found in coffee, tea, and (to a lesser degree) cocoa or chocolate. It is included in many soft drinks, as well as a larger amount in energy drinks. Caffeine is the world's most widely used psychoactive drug and by far the most common stimulant.

  6. Caffeine dependence - Wikipedia

    en.wikipedia.org/wiki/Caffeine_dependence

    Psychiatry. Caffeine dependence is a condition characterized by a set of criteria, including tolerance, withdrawal symptoms, persistent desire or unsuccessful efforts to control use, and continued use despite knowledge of adverse consequences attributed to caffeine. [1] It can appear in physical dependence or psychological dependence, or both.

  7. Caffeinism - Wikipedia

    en.wikipedia.org/wiki/Caffeinism

    Caffeinism is a state of intoxication caused by excessive consumption of caffeine. This intoxication covers a variety of unpleasant physical and mental symptoms associated with the consumption of excessive amounts of caffeine. [1] Caffeine is considered one of the most widely consumed drugs around the world. Around 80% of the world population ...

  8. Caffeine-induced anxiety disorder - Wikipedia

    en.wikipedia.org/wiki/Caffeine-induced_anxiety...

    Caffeine-induced anxiety disorder. Caffeine-induced anxiety disorder is a subclass of the DSM-5 diagnosis of substance/medication-induced anxiety disorder. [1] Consumption of caffeine has long been linked to anxiety. [2] The effects of caffeine and the symptoms of anxiety both increase activity within the sympathetic nervous system.

  9. Substance-induced psychosis - Wikipedia

    en.wikipedia.org/wiki/Substance-induced_psychosis

    Psychiatry, addiction psychiatry. Substance-induced psychosis (commonly known as toxic psychosis or drug-induced psychosis) is a form of psychosis that is attributed to substance intoxication. It is a psychosis that results from the effects of various substances, such as medicinal and nonmedicinal substances, legal and illegal drugs, chemicals ...