In this show, we are focusing in on environment and health and we're taking a closer look at the health benefits of going to the beach. You may have heard about negative ions and many of the reported health claims about these. There is a higher density of negative ions at the beach caused by the waves crashing onto the shore, and these are claimed to be responsible for many health benefits. We'll be asking the question: "Do negative ions really have health benefits or is it just media hype?" We'll also take a closer look at how the sea air and the sounds of nature can benefit our health and the science behind this.