Recent studies indicate a paradox: rising income has not led to increases in long-term levels of life satisfaction. Therefore, the hypothesis that citizens adapt to the growth of GDP is tested. This paper analyses empirically the relationship between a deviation in the trend of seasonally adjusted GDP growth and life satisfaction in Euro zone member countries based on data from the European Commission’s Eurobarometer report. This approach is new to the literature and it enables us to detect medium-term adaptation effects on growth rates. This adds a new way of tackling the question of why economic prosperity has had little or no influence on life satisfaction levels.We found that country-wide differences in the relationship of trend GDP growth and life satisfaction exist. Portugal, Italy, Greece, and Spain showed a significantly positive relationship. For other euro member countries, the hypothesis does not hold. This suggests that two different groups exist and if everything else is held constant, economic growth strategies should vary.