Lower dopamine may drive teen risk-taking that fades with age

Teenage risk-taking, such as experimentation with alcohol, cannabis, nicotine and other substances, may reflect a compensatory response to lower baseline dopamine, the brain chemical for reward activity, a new University ...

AI diagnoses brain tumors in minutes instead of weeks

Experts in Heidelberg, Germany, have developed an AI system that can classify brain tumors with unprecedented accuracy using standard microscopic tissue sections. Using digitized standard stains, the system identifies more ...

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