When we are happy and when not
Summary: The subjective well-being appears incredibly resilient to positive and negative events decreases as a result of wars and recessions, increases in the most fortunate period, but they are temporary fluctuations: they tend to quickly return to the level of perceived happiness before these events. This effect also works on the individual, for example when you lose a partner or the use of your legs after a few years you will return to the levels of happiness before.