system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If a blocked nose is caused by inflammation then how does the blockage switch sides so freely?
gpt
The inflammation is caused by an involuntary part of your brain to stop further germs/bacteria/viruses from entering your body so your immune system doesn't get overloaded. It switches each side so one side doesn't get too exposed to the bacteria before being re-inflamed/re-mucus-ed.