News

Climate

A heat dome is baking the United States. Here’s why that’s so dangerous

As climate change makes heat waves more frequent and intense, older adults, pregnant people and others are at higher risk for heat-related symptoms.

Neuroscience

Pain may take different pathways in men and women

Sex differences in the function of nerve cells in mice, monkeys and humans suggest a new way to treat pain conditions.

Animals

Can leeches leap? New video may help answer that debate

For some, it’s the stuff of nightmares. But a grad student’s serendipitous cell phone video might resolve a long-running debate over leech acrobatics.