求一篇关于咖啡因的英语论文1000字左右的

Caffeine(fromCaffeine)tea,coffeefruitsextractedaalkaloids,properlyusingadispelfatigue,excitednervefunction,usedtotreatneurastheniaandcomarecovery.However,largedosesorlong-termusewillalsoharmfultohuman,especiallyitisaddictie,onceappearspiritdiscontinuedLabourweak,itspedestalvariouswithdrawalsymptoms,althoughitsaddictionisweak,thewithdrawalsymptomswillnotveryserious.Butbecausetolerabilitytheretoincrease,caffeinewillnotaffectthebraincortexandmedullaoblongata,stillcandirectlycauseexcitementandbone,paroxysmalconvulsionsdamageliverandstomach,kidneyandotherimportantorgans,induceairwayinflammatorybreasttumors,womenandevencausediseasesuchasintelligence,smokersnext-generationphysicaldeformities.Thereforealsowaslistedinthenationalregulationofpsychotropicdrugs.

Caffeinealsohavesnortingabuseandinjectionoftwoforms,theexcitementandadversereaction,symptoms,drugdependenceandstyrene-acrylicaminesimilar.

Chinahasmanycrimesandotherdrugtraffickersthecaffeinesmugglingexittocolludegoldentrianglearea.Atpresentthecaffeinethanlegalrequirements,theproductionoflegalpersonofillegalchannels.

Toomuchcaffeinecanleadtocaffeinepoisoning.Itssymptomsareagitated,tensionandexcitement,insomnia,redface,urineanddigestivediscomfort.Somepeopleindailyuseunder250mgwillhavethesesymptoms.Everydaymorethan1gramcancausesuddenspasms,thoughtandlanguagetransformation,heartbeatandtachycardiaandspiritualexercise-inducedvigor.Caffeinepoisoningsymptomssimilartopanicandcomprehensiveanxiety.192mg/weightkilograms[sourceofcommonrequest]oradultsmaycause72coffeehalfdeaths.

Thecaffeineissafe,butthecaffeineandothersimilarsubstancesuchasitmaybe,caffeinetheophyllinetootheranimals,suchastoxictodogsandhorses,thereasonisthattheseanimalsandmetabolismoftheliver.Nowphysicianssaycaffeineandbonelossandosteoporosisareadvisedtoadequateintake,coffee,tea,etc.

Long-termexcessiveintakeofcaffeinecancauseaseriesofmentaldisorders.TwooftheAmericanpsychiatricassociationvalidationiscaffeineanxietyandcaffeinesleepdisorders.

Caffeinesleepdisordersreferstoanindividualbyregularintakeofhighdosesofcaffeineinhisorhersleepdisorders,andcanbefoundinclinicaldiagnosis.

Forsomeindiiduals,largedosesofcoffeedrinkscausedbyclinicaldiagnosisofanxietyenough.Caffeineindifferentformsofanxiety,generalanxietydisorders,panicattacks,obsessive-compulsivedisorderandevenphobia.Becausethesesymptomseasilyconfusedwithbasicnervedisorders,suchaspanicdisorder,anxietydisorders,anxietyorevenschizophrenia,sosomemedicalworkerssaypartofcaffeineintakebymisdiagnosisandunnecessarytreatment,theythinkthatcaffeineinducedbycuttingoffthementalillnesscansourceofcaffeineandeasycontrol.ABritishaddictiveJournal(British):anAddictionsurvey,thoughrarelydiagnosedwithchronicpoisoning,caffeine,atleastonetenthofthepopulationhadbeentroubling.