system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do I wake up with a stuffy nose when I stay the night at somebody else's place?

It seems like every time I stay over at a friend or family members house, I wake up with a really dry, stuffy nose. This often happens without staying the night as well if im there for a few hours. Not sure if anybody else gets this, but can anyone explain it?
gpt
It is the bodys natural reaction to a new/unfamiliar enviroment. Their different detergents, soaps, air pollutants, pet dander, and even human dander all cause your body to have a mild allergic reaction and up the defenses. In this case, primarily the nasal entrance. Some people are more susceptible to allergies than others, you are in that list. You will also find that when you travel to new locales, the new pollens and other irritants cause you to feel stuffy or ill for the first week or so.