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Caffeine-induced sleep disorder was a psychiatric disorder identified as resulting from overconsumption of the stimulant caffeine. Caffeine is one of the most widely consumed psychoactive drugs: almost 90% of Americans in a survey consume some type of caffeine each day. [1] "When caffeine is consumed immediately before bedtime or ...
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.
Symptoms associated with high doses of caffeine include muscle twitching, rambling flow of thought and speech, tachycardia and cardiac arrhythmia, periods of inexhaustibility, and; psychomotor agitation, [1] anorexia (loss of appetite), seizures, death. The symptoms of caffeine intoxication are comparable to the symptoms of overdoses of other ...
The study, released Monday by Epic Research, found the number of caffeine-related ER visits for middle school-aged children nearly doubled from 2017 to 2023, rising from 3.1 per 100,000 visits in ...
The health effects of coffee include various possible health benefits and health risks. [1]A 2017 umbrella review of meta-analyses found that drinking coffee is generally safe within usual levels of intake and is more likely to improve health outcomes than to cause harm at doses of 3 or 4 cups of coffee daily.
Caffeine users are subject to state dependent memory effects when under the effects of caffeine. For example, a study tasked two groups of subjects to remember word lists; half of them had caffeine while the other half were given placebos. When brought back the next day, each original group was now split in half, half of them given the same ...
A popular example of drug–food interaction is the effect of grapefruit on the metabolism of drugs. Interactions may occur by simultaneous targeting of receptors , directly or indirectly. For example, both Zolpidem and alcohol affect GABA A receptors , and their simultaneous consumption results in the overstimulation of the receptor, which can ...
Caffeine and theophylline (found in coffee and tea, respectively) are examples of well-known xanthines, which act as nonselective A 2A antagonists. Both substances act as stimulants, and these properties can be associated with their blockade of the adenosine A 2A receptor - for which they have an affinity in the micromolar range.