"It now pays to get a lot of pleasure out of a little bit of sugar," says Danielle Reed, a scientist at the Monell Chemical Senses Center. Ryan Kellman/NPR hide caption

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The roots of your hankering for hoppy beers and cruciferous vegetables may be genetic. iStockphoto hide caption

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The first taste of an olive can be a bit shocking. But eventually, many of us start to enjoy bitter fruits, nuts and beverages. Screenshot from TEDxTalks/Youtube.com hide caption

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