Fast Exercise at Mumsnet HQ

You've heard of 5:2 and the number one bestselling 'Fast Diet'... Now, Michael Mosely returns with a new book, 'Fast Exercise'. This is what happened when he and co-author Peta Bee put Mumsnet HQ through their paces with an introduction to High Intensity Training (HIT).

Catch up with the web chat here: http://bit.ly/1lZVwUV