Watch Teacher Explaining Birth With Balloon and Ping Pong Ball in Viral Video. Published Nov 08, 2017 at 2:10 PM EST Updated Nov 08, 2017 at 2:33 PM EST.

The owner of a Seattle-based birthing centre has filmed a labour tutorial for prospective parents. Using just a balloon and a ping pong ball, Liz Chalmers re-enacts childbirth in a clip made for ...