Neurosciences

Sam Messina playing hockey for Alabama
Complex surgery gets college athlete back in play after rare brain condition threatens his life

At 20, Sam Messina was thriving. The University of Alabama junior was gearing up for his third season of college hockey and in the best shape of his life – until a single sneeze changed everything.

Learning to make visual predictions with a few simple rules
Tiger salamander
Curbing that craving: how anti-smoking drugs help kick the habit
ashtray