Is Exercise the Best Way to Tackle Obesity?
Is exercise the best way to tackle obesity? We ask what governments can do to encourage more physical activity. We hear from the mayor of Oklahoma City in the US where policy changes helped the population to lose a total of a million pounds in weight. We go to Brazil to find out how they're getting people moving in the run up to the Olympics. Our reporter Vishala Sri-Pathma reviews the latest health and fitness apps. Plus can colours, smells and sounds "con" us into thinking foods are sweeter or saltier than they actually are? All that and the latest from the financial markets.