Neuroscience

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bottles of ketamine

BREAKDOWN  The anesthetic drug ketamine can ease depression, small studies have shown. But the benefit may come not from ketamine itself, but from one of its breakdown products, a new study suggests. 

nerve cells affected by iron levels in the brain

RISK FACTOR  Pigmented nerve cells (black U-shape, center) in the human brain die in Parkinson’s disease, destruction that may be affected by iron levels.  

a sleeping Australian dragon

CATCHING Z’S While sleeping, this Australian dragon (Pogona vitticeps) shows brain wave patterns similar to those of slumbering birds and mammals. 

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