至,增進(jìn)之意。屬于陽盛、脈搏至數(shù)增多一類的脈,如數(shù)脈、疾脈之類。《難經(jīng)·十四難》:“至之脈,一呼再至曰平,三至曰離經(jīng),四至曰奪精,五至曰死,六至曰命絕,此至之脈也?!?/p>