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<br />- 'fhc HeaJth~::Cori'sequen_ces -6rlnvohultary Exposure--to :I~bbacco :Slnoke:- A:-Report of1hc S:.. Page '4 - - <br /> <br />attack. <br />o Nonsmokers who are <br />exposed - to secondhand <br />smok_~: a,t twme or at .work <br />tncrease; their ri~k of, <br />developing heart-disease by <br />25- - 30 percent. <br />o Nonsmokers who are <br />exposed to secondhand <br />smoke- at home 'or at work <br />increase th_eir risk of <br />developing lung cancer by 20 <br />.. 30 percent. <br /> <br />7A <br />Page 8 <br /> <br />S. The sdentific evidence indicates <br />that there Is no risk.free level of <br />exposure to secon,dhand smoke. <br /> <br />Supporting- Evidence <br />o Short ex_posur~s_ to' <br />secondha_nd smoke can <br />cause _b.fo:od pl-atelets to <br />become- stickier, damage the <br />Iinrn~- of blood vessels,; <br />decrease coronary flow <br />velocity reserves, and reduce <br />heart rate variability, <br />potentially increasing the risk <br />of a -heart attack. <br />o Secondhand- smoke - contaln-s <br />many cnemica[s t~a"t can <br />quickly irritate and damage <br />the lining, of the airways. <br />Even brief exposure can <br />result in upper airway <br />changes In healthy persons <br />and can lead to more <br />frequent and more asthma <br />attacks in -children who <br />already have "asthma. <br /> <br />6. Eliminating -smoking in indoor <br />spaces fully protects -n9nsmokers 0 <br />from exposure to secondhand <br />smoke. Separating smokers from <br />nonsmokers, cleaning the air, <br />and ventilating buikiings cannot <br />eHminate exposures of <br />nonsmokers to secondhar;ld <br />smoke. <br /> <br />Supporting Evidence <br /> <br />httn~llw,,\'W ~1lrp'eonp"("nf'rA l f10vIHhmrv 1~~_('_onrl.umrf~mr.kp/f::H.tc::hl."Pt~/f~rh:h(",..th htm I <br /> <br />-Q/ljl')()()7:, <br />