运动后，你的皮肤会出汗，心跳会加快。
After exercising, your skin is sweating and your heart is beating fast.
在你所爱的人面前，你的心跳会加快。
重要的是，要记住咖啡因是一种刺激物，它会加快你的心跳和血压，影响你的睡眠，造成神经过敏和神经兴奋。
It's important to keep in mind that caffeine is a stimulant that can increase your heart rate and blood pressure, interrupt your sleep, and cause nervousness and irritability.
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