Well friends, you might just have an earworm (not an actual living worm).
Usually these are just snippets of a song and never the full thing and that what can drive you insane more so than a full song.
Over 90% of us are plagued by these 'worms' at least once a week with about 25% of those experiencing these 'earworms' more than once a day and it can happen when you're doing things that come so naturally.
Scientists don't know why it is so easy for tunes to get stuck in our heads.
'Earworms' are a special kind of auditory imagery meaning they are involuntary.
You don't deliberately go about trying to get a song stuck in your head, it just sort of happens of its own accord.
The bottom line is, we don't know why we are so easily plagued by these 'earworms' but understanding them better might give us a better idea of the workings of the human brain.
Maybe one day when a Taylor Swift song gets stuck in our head we might just be able to 'Shake it off'.
H/T - TED
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