B Brett Finlay discusses whether we have taken our war on germs a step too far. Subscribe for regular science videos: http://bit.ly/RiSubscRibe "Let Them Eat Dirt: How Microbes Can Make Your Child Healthier" by B Brett Finaly is available now - https://geni.us/AVt6RV8 Although hygiene and antibiotics have overall improved our health, we might have taken our war against germs too far. B Brett Finlay talks about why a little dirt and our microbes might be good for all of us, as he discusses his new book, Let Them Eat Dirt, co-authored with Marie-Claire Arrieta. B Brett Finlay is co-director of the Canadian Institute for Advanced Research’s Humans & the Microbiome program, and a microbiologist at the University of British Columbia. Watch the Q&A here: https://youtu.be/rSwhS_HZWe4 This talk was filmed in the Royal Institution on 30 May 2017. The Ri is on Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook.com/royalinstitution and Tumblr: http://ri-science.tumblr.com/ Our editorial policy: http://www.rigb.org/home/editorial-policy Subscribe for the latest science videos: http://bit.ly/RiNewsletter Product links on this page may be affiliate links which means it won't cost you any extra but we may earn a small commission if you decide to purchase through the link.