First of all, the fact that even water tastes sweeter when people think about love reveals that the emotion isn't acting on the taste receptors on the tongue, making them more sensitive to sugar. There's no sugar in the water, after all. he finding is important for two reasons, Chan said. First of all, the fact that even water tastes sweeter when people think about love reveals that the emotion isn't acting on the taste receptors on the tongue, making them more sensitive to sug...