Naked Archeologist Diana O Carroll takes us on a trip of dating ancient artefacts. Plus we ask, is city living an immune booster? Like this podcast? Please help us by <a href="https://www.thenakedscientists.com/donate">supporting the Naked Scientists</a>

Are city dwellers more immune to bugs?

Each week we set out to solve one of the world's weirdest, wackiest, funniest and funkiest scientific puzzles. And along with the answer there's a brand new question to think about for next time...