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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 promoting), ergogenic (physical performance-enhancing), or nootropic (cognitive-enhancing) properties.
Psychoactive drug use can be traced to prehistory. Archaeological evidence of the use of psychoactive substances, mostly plants, dates back at least 10,000 years; historical evidence indicates cultural use 5,000 years ago. [11] There is evidence of the chewing of coca leaves, for example, in Peruvian society 8,000 years ago. [12] [13]
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.
Caffeine . Caffeine is the most commonly used psychoactive drug in the world. A stimulant of the central nervous system, ... Like most drugs, flakka comes with a comedown. This sensation often ...
In 2008, stimulants, such as caffeine, were the most commonly used nootropic agent. [15] In 2016, the American Medical Association adopted a policy to discourage prescriptions of nootropics for healthy people, on the basis that the cognitive effects appear to be highly variable among individuals, are dose-dependent, and limited or modest at ...
Caffeine. The most recognizable supplement on this list, caffeine is a compound that stimulates the nervous system. ... The Food and Drug Administration states that it's safe to consume up to 400 ...
Caffeine dependence can cause a host of physiological effects if caffeine consumption is not maintained. Commonly known caffeine withdrawal symptoms include headaches, fatigue, loss of focus, lack of motivation, mood swings, nausea, insomnia, dizziness, cardiac issues, hypertension, anxiety, and backache and joint pain; these can range in severity from mild to severe. [18]
Recreational drug use is the use of one or more psychoactive drugs to induce an altered state of consciousness, either for pleasure or for some other casual purpose or pastime. [1] When a psychoactive drug enters the user's body, it induces an intoxicating effect . [ 1 ]