Why are we getting fatter as a nation and what can be done about it?

Description

The stresses and strains of modern life must bear some of the blame for the Western world's obesity epidemic. 

That's the view of Dr Kiara Lewis, head of the division of health and wellbeing at The University of Huddersfied, who says: "The latest thinking is that it's not enough to make individual lifestyle changes, we need to change the environment we live in"