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“Registering different flavours is one of the main ways that our bodies interact with the world around us. Amazingly enough, the human olfactory bulb is the only part of the central nervous system that is directly exposed to our environment, through the nasal cavity. Our other senses – sight, sound and touch – need to travel on a complicated journey via nerves along the spinal cord up to the brain. Smell and flavour, by contrast, surge direct from plate to nose.” ― Bee Wilson, First Bite: How We Learn to Eat