Informal caregivers, most often older people, provide valuable care and support for people ill due to AIDS, especially in poor-resource settings with inadequate health care systems and limited access to antiretroviral therapy. The negative health consequences associated with care-giving may vary depending on various factors that act to mediate the extent of the effects on the caregiver. This paper investigates the association between care-giving and poor health among older carers to people living with AIDS, and examines potential within-gender differences in reporting poor health.