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、和麻烦的时间。

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.

它确实能给我带来那一丝额外的能量波动，但并非那种让人、近乎狂躁的能量，不会让你的率无法平复。

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受体的结合导致内流细胞外钙，控制膜的性和突触传。

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

这导致脏神经元和肌肉的性或反应性降低。

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

初始变化可能增加肌细胞的性，但钾进一步升高却具有相反的作用。

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

然而，这对肌细胞性的影响是复杂的。

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

这降低脏的性和抑制折返性快速性律失常。