Summary: Mark investigates reports that the UK faces an epidemic of "mutant flu". Just a month after NICE calls for more weight loss operations to be done, there are proposals to slash the amount hospitals are paid to do the procedures - a move that could see many hospitals stop offering the operation. Six packs and big guns - there is growing concern about steroid abuse by young men on a quest for the perfect body. And Dry January - Mark looks at the science behind going on the wagon for a month.
