In the 1980s, in order to increase the stability of the system, the "normal" or "full" retirement age was increased in the normal or full retirement age from 65 to 67. While the increase is gradual and relatively small, it represents a major change in Social Security philosophy. The age-65 retirement limit for full benefits had not been changed since the adoption of the Social Security Act in 1935, even though life expectancy for a 65-year-old then was only another 2 years. Today the life expectancy of a 65 year old is another 16 years for a man and 19 years for a woman. In 1935, when Social Security was enacted, most people never reached age 65.