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一名31岁的摩洛哥女子因心脏不适及昏厥入院，医生检查后发现其体内钾含量严重偏低，而且患有可能导致心律不齐的QT间期延长综合征。该女子表示，她自15岁起就没有喝过水，每天只喝大约两升可乐。而在其停止喝可乐一周以后，她体内的钾含量和心电活动都恢复了正常。研究人员表示，喝太多可乐会使将过多水分引致肠道，从而引发腹泻并导致钾流失；同时，可乐中的咖啡因也会促进尿液排出，降低了钾的再吸收率。体内钾含量过低会导致心律问题。研究人员同时还发现了另外6个因过量饮用可乐而导致健康问题的案例，过量饮用可乐也会导致体重增加，从而引发心脏问题。 A 31-year old woman's heart problems and fainting might have had something to do with the fact that she drank only soda for about half her life, according to a report of her case. The woman, who lives in Monaco, a small country near southern France, was brought to a hospital after she fainted. A blood test showed she had severely low potassium levels. And a test of her heart's electrical activity revealed she had a condition called long QT syndrome, which can cause erratic heart beats. The woman did not have a family history of heart or hormone problems. But she told her doctors that, since the age of 15, she had not drunk any water — soda (specifically cola) was the only liquid she consumed. She drank about 2 liters (2 quarts) of cola daily, she said. | 
