2/6. Ten-year-old Steffan has smoked since the age of four. He and his sister spend too much time watching TV - and their junk-food diet has a huge impact on their health and behaviour. Can Kris Murrin help? Producer Emma Boswell ; Series producer Robin Ashbrook
First shown on BBC3 www.bbc.co.uk/health Honey We're Killing the Kids Revisited is on Mondays on BBC3