ers ▁Category : G erman ▁Red ▁Cross ▁personnel ▁Category : W rit ers ▁from ▁Vienna ▁Category : Date ▁of ▁death ▁missing ▁Category : 2 0 th - century ▁German ▁novel ists ▁Category : 2 0 th - century ▁German ▁women ▁writers ▁Category : W omen ▁aut obi ograph ers <0x0A> </s> ▁Ex erc ise - indu ced ▁an ap hy la xis ▁( E IA , ▁E I An , ▁E I As ) ▁is ▁a ▁rare ▁condition ▁in ▁which ▁an ap hy la xis , ▁a ▁serious ▁or ▁life - th re aten ing ▁all erg ic ▁response , ▁is ▁brought ▁on ▁by ▁physical ▁activity . ▁Appro xim ately ▁ 5 - 1 5 % ▁of ▁all ▁reported ▁cases ▁of ▁an ap hy la xis ▁are ▁thought ▁to ▁be ▁exercise - indu ced . ▁ ▁The ▁exact ▁proportion ▁of ▁the ▁population ▁with ▁E IA ▁is ▁unknown , ▁but ▁a ▁ 2 0 0 1 ▁study ▁of ▁ 7 6 , 2 2 9 ▁Japanese ▁junior ▁high ▁students ▁showed ▁that ▁the ▁frequency ▁of ▁E IA ▁was ▁ 0 . 0 3 1 %. ▁ ▁Ex erc ise - indu ced ▁an ap hy la xis ▁is ▁not ▁a ▁widely ▁known ▁or ▁understood ▁condition , ▁with ▁the ▁first ▁research ▁on ▁the ▁dis order ▁only ▁having ▁been ▁conducted ▁in ▁the ▁past ▁ 4 0 ▁years . ▁A ▁case ▁report ▁in ▁ 1 9 7 9 ▁on ▁E IA ▁was ▁the ▁first ▁research ▁of ▁its ▁kind , ▁where ▁a ▁patient ▁was ▁described ▁to ▁experience ▁an ap