The Download: handling extreme heat, and replicating superconductor results

To keep our bodies at their relatively stable core temperature of around 98.6 F (37 C), we constantly lose heat. It's a process that can be sped up by sweating. But the whole balancing act can get derailed when we're exposed to extreme heat. If your body isn't able to cool itself down fast enough, a whole cascade of problems can start, from stressing out your heart to throwing your kidneys and liver into chaos. Here's some good news: to some extent, our bodies can and do adjust slightly to the heat.