How your brain learned to love coffee, chocolate, fat and sugar
If you can remember your first sip of coffee, the memory might not be a pleasant one. Coffee's bitter flavor is one we naturally steer clear of. So how do coffee fans learn to love it? The answer may lie in an understudied "slow" dopamine pathway connecting the gut and brain. A new study from UC San Francisco shows that this pathway helps the brain connect a flavor with the beneficial effects…
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