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Researchers Uncover A Circuit For Sadness In The Human Brain

03:03
Patients awaiting epilepsy surgery agreed to keep a running log of their mood while researchers used tiny wires to monitor electrical activity in their brains. The combination revealed a circuit for sadness. (Ikon Images/Getty Images)
Patients awaiting epilepsy surgery agreed to keep a running log of their mood while researchers used tiny wires to monitor electrical activity in their brains. The combination revealed a circuit for sadness. (Ikon Images/Getty Images)

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