Linking smell to metabolism and aging

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Science  10 Nov 2017:
Vol. 358, Issue 6364, pp. 718-719
DOI: 10.1126/science.aao5474

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The sense of smell, or olfaction, allows animals to survey the chemical landscape of the outside world and use this information to guide behavior. Olfactory cues are particularly important for the regulation of feeding, but how odor perception influences other aspects of energy homeostasis remains poorly understood. Recent work has begun to uncover some of these connections, revealing an unexpected role for olfaction in the control of metabolism and longevity.