Cortisol takes its title from the stress hormone of the same name, which is why the clip has found a natural home in short form comedy about pressure and overthinking. Online, creators use the word as shorthand for a spike in anxiety, so the sound works as an instant label for moments that feel bigger than they are. It appears in meme edits, reaction posts and everyday stress jokes, where a familiar situation is played as a minor crisis, and its meaning stays clear even without any context or a known source recording behind it.