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This episode explains how we sense chemicals through smell, taste, and pheromones. How things smell and taste and chemicals in the tears, breath, and on the skin of others have a profound effect on how we feel, what we do, and our hormones. I explain the 3 types of responses to smell, the 5 types of tastes, the possible existence of sixth taste sense, and how the act of sniffing can make us learn and focus better. I explain how smell and taste reflect brain health and can assess and even promote brain regeneration. I discuss how eating specific categories of foods makes us crave more of those foods, including how to make sour things taste sweet and develop a heightened sense of smell and taste.\xa0\nFor the full show notes and timestamps, visit hubermanlab.com.\nThank you to our sponsors\nAG1 (Athletic Greens): https://athleticgreens.com/huberman\nLMNT: https://drinklmnt.com/huberman\nSupplements from Momentous\nhttps://www.livemomentous.com/huberman\nTitle Card Photo Credit: Mike Blabac\nDisclaimer