Recent research has demonstrated that older adult volunteers are more likely to be involved in relationship building with young people who are in difficult situations, in periods of transition, and in educational endeavors than volunteers of younger ages. Research also suggests that nurturing, giving to, and serving others contributes to greater ego integrity, personal happiness, and overall well-being and that at midlife and older, adults are able to give more unpaid assistance and emotional support to more people. The author concludes that one's age and "life stage" have some bearing on the reasons adults 50+ get involved in mentoring and, perhaps, on the roles they play as mentors, and advocates that program developers keep in mind that recruiting messages and strategies should be age-specific and sensitive, as do design and delivery of training and supervision. The article is followed by suggestions on how practitioners can incorporate the research findings into mentoring programs and a list of additional resources. (Contains 1 table.) [The 10-issue "Research in Action" series, edited by Jean E. Rhodes, is the initial project of the MENTOR Research and Policy Council, charged with taking current mentoring research and translating it into useful, user-friendly materials for mentoring practitioners. For full series, see ED502220 through ED502229, inclusive.]