People with synesthesia—adults and kids—have their senses crossed: for some, sounds have colors, for others words have smells. It’s sort of like living in an elementary school classroom, where ...

If I told you the letter “G” is red, you might be confused. But if you had what’s called grapheme-color synesthesia (GC), there’s a good chance you’d argue I’m wrong. That’s because many people who ...

Ever since I can remember, numbers have appeared to me in specific colors. The number 2 is baby pink, 3 is sunshine yellow, 4 is royal blue-the list goes on. It’s not just that they look a certain way ...

Synesthesia is a neurological condition in which information meant to stimulate one of your senses stimulates several of your senses. People are usually born with the condition, but some people ...