“ Happiness doesn't just flow from success, it actually causes it. ”
researchers discovered that people who have just consumed caffeinated drinks were more likely to be swayed by arguments about various controversial topics.55 In short, good evidence that there really is no such thing as a free lunch or an innocent cup of coffee.
~ Richard Wiseman
When people can afford necessities in life, an increase in income dones not result in a significantly happier life.