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 [email protected], 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 on our show.

Also, email us! [email protected]

We read every email.

Help keep this show and all of Vox's journalism free by making a gift to Vox today: bit.ly/givepodcasts

Learn more about your ad choices. Visit podcastchoices.com/adchoices