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Anabolic Steroids Worksheet.pdf - Anabolic steroids are...

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Anabolic steroidsarechemicalsthataresimilartothemalesexhormonetestosterone,whichisresponsibleformalesecondarysexcharacteristics when young men reachpuberty.Althoughtheyhave been used(and continuetobeused)inprofessionalsports,anabolicsteroidsareusedbyincreasing numbersofteenagers,especiallynon-athletes, whowanttobuild musclesizeandstrength.Studiesinthe1970sonanabolic steroidstendedtodismisstheirstrength-enhancingproperties.Asaresult,healtheducatorsusedtotellstudentsthat steroids didnothingexcept tapintothewell-knownplaceboeffect.Therhetoric, however,didnotmatch whatsteroiduserswereactuallyexperiencing.Today,itiswellestablishedthatanabolic steroids do,infact,contributesignificantlytoincreasedmusclemass,especially whentakenbyanindividualwhoistrainingintenselywithweightsandfollowinganadequatediet. Whetherthis increased musclemasscausesbetter athletic performances,however,hasnotbeenscientificallyshown.Remindstudents thatathletics requiresskill,speed,coordination,etc.-notjuststrength."Twoofthemostvisiblegroupstakinganabolic steroids today are professional bodybuildersand,ofcourse,professionalwrestlers,who have becomecultheroesförmillionsofyoungpeople. Footballplayers,along withtrackandfieldathletes,whoseeventsrequire explosivespeed andstrength,alsocomprisea significantportionofthosewhousesteroidstoenhanceperformance. Unfortunately,steroidscan damagemanybodyorgans,includingtheliver,heart andkidneys.Formerprofessionalfootballstar,LyleAlzado,developed braincancer,whichwasattributedtolong-termsteroiduse.How TheyWorkAnabolicsteroidsare more accuratelydefinedasanabolic-androgenicsteroids. Thewordanabolicrefers tothe"building-up"effects,whileandrogenicreferstothemasculineeffectsofthedrug.Thescchemicals aretakeneitherorallyinpillformorby injection.When steroidsenterthebloodstream,they aredistributedtothe musclesaswellas themajororgansofthebody.Thesteroids thenenterthecellmembranetothecytoplasm.Oncethere,the steroidsbindtospecificreceptorsandthenenterthenucleusofthecell,wheretheyareabletostimulatetheproductionofnewproteins.Theseproteins areresponsibleforthe sought-aftereffectsofsteroids.They arealso responsiblefortheside-effects.Forexample,changesinproteinsynthesisinmuscletissuemay mean agreatercapacitytoadapttoincreasing workload.On theotherhand,changesinproteinsynthesisinthelivercould resultinexcessproductionofcholesterolInthebrain,steroidsaffectthehypothalamusandthelimbicsystem. Becausethehypothalamuscontrols thebody'shormonelevels,steroidusemay resultinloweredtestosteroneproduction inthemaleand the cessationofmenstruationinthe female.Byaffectingthelimbicsystem,steroidsproducechangesinmemoryand moods.

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Term
Spring
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Tags
anabolic steroids, Anabolic steroid

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