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.

有些因素会加重酒渣鼻，例如酒或任何能作为血管扩张剂、使皮肤经支配血管扩张东西。

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.

我们整天感到疲倦原因是因为一种叫做腺经化学物质会积聚并通过受体，这会导致经细胞变得不那么活跃， 大脑中血管会扩张。