The November 2023 issue of IEEE Spectrum is here!

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iCandy: Tech in Your Body

Devices that help humans see, drive, and feel better

1 min read

Photo: Markku Ojala/EPA/Landov
You’re going to listen to music anyway… Finnish technology company Valkee has developed earbuds that emit light right where it’s needed to relieve the symptoms of seasonal affective disorder, which causes depression during the winter months because sunlight is in short supply. The LEDs in the earphones shine light on the brain through the ear canal, the spot where the skull is thinnest.

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