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caffeine to relieve or prevent drowsiness and to improve cognitive performance. to make these drinks, caffeine is extracted by steeping the plant product in water, a process called infusion . caffeine-containing drinks, such as coffee , tea , and cola , are very popular; as of , % of american adults
addiction is defined. compulsive caffeine consumption under any circumstances has not been observed, and caffeine is therefore not generally considered addictive. [ ] however, some diagnostic models, such as the icdm- and icd- , include a classification of caffeine addiction under a broader diagnostic...
https://en.wikipedia.org/wiki/Caffeine