For most of us, listening to music, reading a good book, or talking to a friend on the phone are all great ways to wind down. But for someone with synesthesia, activities like those take on another dimension. Synesthetes, as they’re called, experience a blending of two or more senses so that music may have flavor, words may show up in imaginary colors, or voices may elicit different tactile sensations. Scientists don’t yet understand the root causes of this real-life superpower, but what they’re discovering so far is exciting.

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