Dr Chris Smith and the Naked Scientist team present the latest science news, analysis and breakthroughs, In this week's episode...a human receives one of Elon Musk’s brain implants, but why? Also scientists unlock part of the puzzle of why fasting can cut inflammation and slow down the gaining process, and a brief history of spine – we explore a new exhibition on vertebrates. Plus The science of shipping – we go to sea on a ship of the future to hear how the industry is trying to cut it’s carbon footprint. Get the podcast from the BBC Sounds app.