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Stanford Medicine scientists locate key brain circuit containing the seat of male libido

In this image of a male mouse's brain, pink denotes the bed nucleus of the stria terminalis (BNST); green, the preoptic hypothalamus. The impulse flows from pink to green in the neural circuit governing mating drive, behavior and satisfaction.

In this image of a male mouse's brain, pink denotes the bed nucleus of the stria terminalis (BNST); green, the preoptic hypothalamus. The impulse flows from pink to green in the neural circuit governing mating drive, behavior and satisfaction. Photo by Daniel Bayless.