In this week's episode, we have PUPPIES in the house, as the team spends a day in the life of a working guide dog, learning more about the incredible difference these dogs make to the lives of those without sight. The team also meets Dr Snip as he separates fact from fiction for those men considering having a vasectomy, before Luke Hines gets the results from his myDNA test – will his genes unlock the answer to his diet and fitness woes? Plus we step inside the only flu vaccination manufacturer in the southern hemisphere to see how flu vaccines are actually made.