What happens to the body when a human gets heatstroke? How can we protect ourselves in a warming planet? To answer these burning questions, Arizona researchers have deployed a robot that can breathe, shiver and sweat.

The southwestern state's capital, Phoenix, is currently enduring its longest heat wave in history: on Friday, the mercury exceeded 110 degrees Fahrenheit (43 degrees Celsius) for the 22nd day in a row, an ominous demonstration of what's to come in a world impacted by climate change.

For humans, such heat represents a potentially lethal threat, one that is still not fully understood. But for ANDI — a one-of-a-kind humanoid robot at Arizona State University — it's a lovely day out.