Gut Bugs: Friend or Foe?

The Naked Scientists go on a tour of the intestine, from top to bottom, in search of the good and bad germs that lurk there and what they mean for our health. Plus, why touchscreens may be harming toddlers' sleep and why scientists all over the world are putting down their pipettes and picking up placards. Like this podcast? Please help us by supporting the Naked Scientists