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  2. 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.

  3. Everything You Need to Know About Caffeine—Including ... - AOL

    www.aol.com/everything-know-caffeine-including...

    Tea, of course, contains caffeine too. An 8-oz. cup of black tea has just shy of 50 mg, and green tea weighs in at close to 30. ... You can even have caffeine withdrawal. Symptoms can be similar ...

  4. Caffeine - Wikipedia

    en.wikipedia.org/wiki/Caffeine

    Caffeine. Caffeine is a central nervous system (CNS) stimulant of the methylxanthine class and is the most commonly consumed psychoactive substance globally. [9][10] It is mainly used for its eugeroic (wakefulness promoter), ergogenic (physical performance enhancing), or nootropic (cognition improving) properties. [11][12] Caffeine acts by ...

  5. 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 ...

  6. How much caffeine is too much? - AOL

    www.aol.com/finance/much-caffeine-too-much...

    The overconsumption of caffeine is harmful and potentially fatal. In fact, the FDA estimates toxic effects, like seizures, can be observed with rapid consumption of around 1,200 milligrams of ...

  7. This is what happens to your body when you drink tea every day

    www.aol.com/article/lifestyle/2019/08/07/this-is...

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  8. 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 ...

  9. The Major Green Tea Myth We Have to Stop Believing - AOL

    www.aol.com/study-shows-lower-risk...

    And in any case, green tea is lower in caffeine than coffee is, so it may be a better choice for those who get jittery after a cup of joe (one cup of home-brewed coffee contains about 100mg of ...