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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 ...
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.
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.
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.
Whether you start each day with a latte or rely on a shot of espresso to get over the mid-afternoon hump, a healthy, moderate caffeine habit can provide 11 health benefits of caffeine, the most ...
The risk was reduced by 48.1% if they had three cups a day, or 40.7% if they had 200 to 300 milligrams of caffeine daily, compared with people who didn’t drink or drank less than one cup, Ke said.
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 ...
One of the reasons abusing opiates may make people more susceptible to future heroin abuse, the report says, is that the drugs act similarly in the brain. Caffeine