How Sugary Diets Are Destroying Our Immune Systems

Catalyst: Ancient Teeth - By investigating evidence from ancient teeth, we find out about how the human diet and health conditions have changed over time. Subscribe to Journeyman for daily uploads: http://www.youtube.com/subscription_center?add_user=journeymanpictures Go to the Journeyman Science playlist: https://www.youtube.com/playlist?list=PLlGSlkijht5iXbPX7d_oTP47c9C3kArQ0 Our diets have changed tremendously as humans have developed and progressed over time, from the meat-heavy diets from our hunter-gatherer days, to the advent of agriculture about 10,000 years ago and the high sugar content of today’s fast, convenient food. Our changing diet has had a variety of effects on our health, not least on our ‘microbiome’; diversity in the bacteria living inside us has decreased dramatically, with severe knock-on effects on our immune systems. Dr Graham Phillips presents evidence from our ancestors’ teeth, which shows just how much our diets and resultant bacterial communities inside our bodies have changed over time. ABC Australia - Ref 6284 Journeyman Pictures brings you highlights from the cutting-edge science series, ‘Catalyst’, produced by our long-term content partners at ABC Australia. Every day we’ll upload a new episode that takes you to the heart of the most intriguing and relevant science-related stories of the day, transforming your perspective of the issues shaping our world.