Worklife with Adam Grant ReThinking: The science of taste and smell with Rachel Herz
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Jul 22, 2025 
Rachel Herz, a Brown University neuroscientist and author, dives into the fascinating world of taste and smell. She explains the genetics behind being a 'super taster' and how our biology shapes food preferences. Herz discusses the often-overlooked power of smell, especially in forming emotional connections and memories. Plus, she humorously speculates on future technologies that could enhance our sensory experiences. Tune in for insights that will change the way you think about the food on your plate!
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Supertaster Genetics Explained
- A supertaster has many more taste buds making bitter foods very intense and often unpleasant.
- Genetic differences also explain why some people find cilantro tastes soapy due to missing specific olfactory receptors.
Evolution Shapes Taste Preferences
- Humans are evolutionarily hardwired to dislike bitter tastes and like sweet tastes.
- Bitter signals potential poisons, while sweet indicates energy-rich carbohydrates essential for survival.
Chefs' Taste Buds Vary
- Many chefs are supertasters because they enjoy intense flavors.
- Conversely, some non-taster chefs appreciate a broader flavor perspective that aligns with most customers' experiences.
