Regular readers of The Space Doctors will already be aware of the weird fact that the colours we surround ourselves with or look at while we’re eating affect how much we eat. for instance, we’ve previously reported here on how what you see influences what you eat in unexpected ways. Now Spence and Levitan share that “For centuries, if not millennia, people have associated the basic tastes (e.g., sweet, bitter, salty, and sour) with specific colours. . . . Spence et…