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Caffeine - Princeton University Health Services

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Effects of caffeine Jumptonavigation EMERGENCY 911 MEDICALSERVICES 609-258-3141 Searchform Search Caffeine Caffeineisacentralnervoussystemstimulant andthemostcommonlyconsumedlegal,psychoactivesubstance.Ithasawiderangeofeffectsofmostpeopleandisconsideredsafeinlimitedamounts.  Learnmoreabout: Effectsofcaffeine Caffeinecontent Signsforconcern Tipsformoderatinguse Effectsofcaffeine Caffeinetakesaboutanhourtotakeaffect(lessonanemptystomach),andcanlasts4-6hours.Theactualeffectsofcaffeinedependonanumberoffactors,including: genetics; bodyweight; medicationsbeingtaken; healthconditions;and amountofregularconsumption.  Shorttermeffects Becausecaffeineisastimulant,itiscommontoexperience: increasedalertness increasedbloodpressure increasedbreathingrate  increasedurination Theseeffectsaremostlyduetocaffeineincreasingyourmetabolicrate(thoughithasnotbeenlinkedtoweightloss).Caffeineisalsoadiuretic,whichcauses increasedurination,andmayleadtodehydration.  Long-termeffects Long-termusecanleadto: nervousness insomnia dehydration stomachirritation fatigue Caffeinecontent Theamountofcaffeineinadrinkdependsonthesizeandthechemicalcomponents.Hereisalistofcommondrinks,theirsizeandcaffeinecontent: Beverages Servingsize(oz) Caffeineamount(mg) Brewedcoffee 8 80-115 Espresso 2 80 Cappuccino 8 80 Icedtea 8 30 Chocolatemilk 8 5 Hotcocoa 8 6 Coladrinks 12 38-46 Jolt  12 70   SignsforConcern Moderatecaffeineuse(400milligramsor4cupsaday)isconsideredsafeforhealthyadults.However,youmaywanttotakealookatyourintakeifyouexperienceanyofthesenegativesideeffects: nervous,dizzy,orirritable gastrointestinalaches frequenturination headaches muscletremors difficultyfallingasleep TipsforModeratingUse Ifyoudrinktwoormorecupsofacaffeinateddrink eachday,youwillmostlikelyexperiencewithdrawalifyoustopdrinkingitcompletely.Themostcommonsymptomofcaffeinewithdrawalisaheadache,butyoumayalsoexperiencemoresevereeffects,suchasanxiety,fatigue,anddepression.Ifyouwanttoeliminatecaffeinefromyourdiet,itisbesttoreduceintakegradually. Someothertipsforreducingcaffeineuseareto: Keeptrackofhowmuchcaffeineyoudrink Graduallyloweryourconsumptionbyonecupatatime Mixregularcoffeewithdecaf/brewweakertea Optforanon-caffeinateddrink  Getsomemoresleep/Takeanap,whentired Exerciseforanenergyburst Services Counseling&PsychologicalServices 609-258-3141 MedicalServices 609-258-3141 OccupationalHealthServices 609-258-5035 SHARE 609-258-3310 StudentHealthPlan 609-258-3138

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