I believe there is a relationship between having an interest in the arts and the behaviour of society as a whole. Some politicians find it difficult that the arts is a weapon of happiness... Politics is often about deprivation rather than the opening up of ideas and nourishing creative endeavour.
It has long been known for sure that the sight of tasty food makes a hungry man's mouth water also lack of appetite has always been regarded as an undesirable phenomenon from which one might conclude that appetite is essentially linked with the process of digestion.