The reason we get tired throughout the day is because a neurochemical called adenosine builds up and passes through receptors, which causes nerve cells to become less active and blood vessels in your brain to dilate.

整天感到疲倦的原因是因为一种叫做腺苷的神经化学物质会积聚并通过受体，会导致神经细胞变得不那么活跃， 大脑中的血管会扩张。

And there are things that can exacerbate rosacea such as alcohol intake or anything that acts as a vasodilator that dilates the vasculature innervating the skin.

有些因素会加重渣鼻，精摄入或任何能作为血管扩张剂、使皮肤神经支配的血管扩张的东西。