BPS research digest has a great little summary of an article investigating the role of hunger in risk-taking.  The article speculates on the results it observed about eating and risk-taking on the theory of behaviour of obese individuals and individuals on diets. The general result was that people who are hungry are likely to take more risks and that this is exacerbated by 'baseline adiposity', that is, how much adipose tissue an individual has, or how 'fat' they...