The cause is a genetic difference that they are born with called an ALDH2 It processing alcohol the way other people do .
出现这种现象的原因是与生俱来的遗传差异导致缺乏乙醛脱氢酶2（ALDH2）。这使他们的身体不能像其他人一样正常处理酒精。
aldh2