Your questions, unexplained

This week, we tackle three listener questions — on sleepwalking,
deja vu, and Earth’s magnetic field. Next time, we could be (not)
answering yours. Email us at unexplainable@vox.com, or fill out
this form. For more, go to http://vox.com/unexplainable It’s a
great place to view show transcripts and read more about the topics
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