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Neuroscience

Boosting a liver protein may mimic the brain benefits of exercise

Finding that liver-made proteins influence the brain may advance the quest for an “exercise pill” that can deliver the benefits of physical activity.

Science & Society

There’s little evidence showing which police reforms work

When stories of police violence against civilians capture public attention, reforms follow despite a dearth of hard data quantifying their impact.

Physics

Physicists have ‘braided’ strange quasiparticles called anyons

All known particles fall into two classes. Physicists just found new evidence of a third class in 2-D materials.

Animals

Calculating a dog’s age in human years is harder than you think

People generally convert a dog’s age to human years by multiplying its age by seven.