Passengers on flights between New York and London tried out the blankets, which, when paired with putatively neurosensing headbands that purport to reveal people’s mental states—woven into the wool blankets are fiberoptics, which change color based on the data they receive, via Bluetooth, from the headbands. If a person’s blanket turns red, it means she’s "stressed" or "anxious"; if it turns blue, it means she’s "calm" and "relaxed."
Read the rest of the Popular Mechanics article.
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