15% of the results were negative, 50% were not significant and 36% were positive. These results do not support the ‘use it or lose it’ hypothesis, indicating the health of retirees is expected to worsen after retirement because of inactivity. Although the results of retirement on health are more often positive than negative, this research does not have to be a cause of concern for policy makers who want to raise the retirement age. The negative effects of postponed retirement on health care expenditure are likely smaller than the benefits for the treasury.