Researchers believe the increase in heart rate might demonstrate what they call the fight or flight response.

VOA: special.2009.08.18

And it is almost like being in love except what it really is is two shots of caffeinated espresso causing a rapid heart rate an increase in respiration, sweaty palms, but I don't realize--she doesn't realize that's what it is.

跟恋爱一样的感觉,其实什么都不是,而是双倍浓度的咖啡因,导致心跳加速,呼吸急促，掌心冒汗，但我没意识到--她没意识到那是什么。

耶鲁公开课 - 心理学导论课程节选

If another receptor operating from a different ligand does the same thing, generates an enzyme which causes cyclic AMP to increase, the rate of cyclic AMP increase is going to go up faster than if only one of these was activated.

如果受另一种配体激活的受体,能够完成相同的过程,即激活一种能够促进cAMP生成的酶,cAMP的生成速率会比,只有其中之一被激活时更加快

耶鲁公开课 - 生物医学工程探索课程节选

The experiment showed that swearing caused people's heart rate to increase.

VOA: special.2009.08.18

"It will continue to be soft, given the fact the rate at which there is price increase,".

VOA: standard.2009.09.19

"We have detected certainly an increase in the past couple of weeks of the rate at which people are being allowed to return home,"

VOA: standard.2009.10.23