Late Night Learning: Why Does My Nose Run When I Eat Something Spicy?

So for a late night snack I decided to eat hot and spicy shrimp cup noodles with lime, and my nose started running like it always does whenever I eat something spicy. Curious as to why, I decided to Google the reasoning behind the occurrence. This is what I found: "All hot peppers contain capsaicinoids, natural substances that produce a burning sensation in the mouth, causing the eyes to water and the nose to run, and even induce perspiration. Capsaicinoids have no flavor or odor, but act directly on the pain receptors in the mouth and throat. The primary capsaicinoid, capsaicin, is so hot that a single drop diluted in 100,000 drops of water will produce a blistering of the tongue."

And this is the positive result of curiosity: I learned something new and educational and probably won't remember this next week. But that's okay. Good thing I'm not curious about other things. Like drugs.