Cody Gough, podcast host at Curiosity.com, discusses new studies that reveal why we may not want to be around people when we're sick. He also describes the physical characteristics that tell people when we're feeling under the weather.
Gough jokingly discusses why people are scientifically wired to "call out sick." Our immune system sends signals to our brain when we're ill telling us to not be around others. We also dig into the evolutionary aspects of being sick. Naturally, when we're sick our bodies want us to get rest in order to heal and avoid infecting others.
Scientists at the European Space Agency have created an animation showing Mars that's been strung together from photos of a desert canyon on the planet.
