但是再多就会导致神经过敏、心跳加快、心悸、失眠、和烦躁。
But more than that may cause nervousness, rapid heartbeat, palpitations, sleeplessness, and irritability.
做为一种兴奋剂，咖啡因让你全身活跃，血压和心跳升高，在某些例子中导致心悸和心率不齐。
As a stimulant, caffeine jazzes up your whole body, increasing blood pressure, heart rate and in some cases, causing heart palpitations and an irregular heartbeat.
保存出现心悸时间的记录，当发生时，记录持续的长短，当时的心跳频率，以及自己的感觉。
Keep track of how often you have palpitations, when they occur, their duration, your heart rate when you experience them, and how you felt at the time.
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