That's a bad time for agitation, hyperactivity, hypervigilance, spasticity, craziness, nervousness, excitability, and trouble.

那是个不适宜激动、过度活跃、过度警觉、痉挛、疯狂、紧张、兴奋和麻烦时间。

And it does give me that extra little wave of energy, but not that excitability, manic energy, where your heart rate can't calm down.

它确实给我带来那一丝额量波动，但并非那种让人兴奋、近乎狂躁量，不会让你率无法平复。

Now, as you may know, the binding of glutamate to the NMDA receptor results in an influx of extracellular calcium, which controls membrane excitability and synaptic transmission.

现在，如你所知，谷氨酸与NMDA受体致内流细胞钙，控制膜兴奋性和突触传递。

The result is a reduced excitability or responsiveness of the neurons and muscles in the heart.

这致脏神经元和肌肉兴奋性或反应性降低。

While initial changes seem to increase myocyte excitability; further rise of potassium has the OPPOSITE effect.

初始变化可增加肌细胞兴奋性，但钾进一步升高却具有相反作用。

The effect this has on excitability of myocytes, however, is complex.

然而，这对肌细胞兴奋性影响是复杂。

This reduces the heart's excitability and suppresses reentrant tachycardia.

这降低脏兴奋性和抑制折返性快速性律失常。