A survey of 742 women in midlife found that 12% were involved in the care of another person with a chronic health disorder. Of note was the diversity of circumstances that led to the women becoming caregivers. Further, about a third of the carers were supporting more than one person. Carers did not differ on measures of depression or subjective health ratings from persons not involved in care. Burden scores were predicted by co-residence, low satisfaction with social support, and poorer health ratings on the part of the carers but not by the relationship between the person cared for and the carer.