Lithium is a tiny tiny atom - it's basically the third tiniest! But it also helps enormously with mental health issues. Which is super weird. Even weirder was how it was discovered, and it involved guinea pigs and urine!Rod tells Will the story of John Cade's discovery of Lithium!The Wholesome Show is Dr Will Grant and Dr Rod Lamberts, proudly brought to you by The Australian National Centre for the Public Awareness of Science!See omnystudio.com/listener for privacy information.