Joe Forgas at the University of New South Wales in Sydney, Australia, has shown that positive moods can make us more gullible, less able to develop persuasive a

Joe Forgas at the University of New South Wales in Sydney, Australia, has shown that positive moods can make us more gullible, less able to develop persuasive arguments, and more likely to make careless decisions. This has led Robert Cummins of Deakin University in Melbourne, Australia, among others, to argue that there is an optimum level of life satisfaction - around 7 or 8 out of 10 on the standard scale - at which we flourish. That's the "not too much" reasoning. The article also confuses visceral (in the moment) happiness with reflective (how do I feel about my life) happiness which is annoyingly common in articles about happiness.