Despite the fact that, in a few years, a fifth of the US population wi
ll be older than 65 years and people will be living a third of their l
ives after retirement, we have developed few avenues that would permit
older adults to play meaningful roles as they age and few institution
s to harness the experience that older adults could contribute to soci
ety. In fact, older adults constitute this country's only increasing n
atural resource-and the least used one. In this article we consider th
e rationale for developing institutions that harness the abilities and
time of older adults, rather than focusing solely on their needs. Suc
h an approach would decrease the structural lag between a social conce
pt of retirement as unproductive leisure and an aging population that
is larger, healthier, and with a need for more productive opportunitie
s. Gerontologically designed opportunities for contribution on a large
social scale could well provide a national approach to primary preven
tion to maintain health and function in older adults.