Portrait of the American family caregiver: In the past 12 months, an estimated 65.7 million people in the United States—29% of the adult population—have served as unpaid family caregivers to an adult or a child, according to a new report, Caregiving in the U.S. 2009. The percentage does not appear to have changed significantly since the first such report in 2004. Most caregivers are women (66%), the average age is 48, and most (57%) are employed. The main reasons people need care are old age (12%), Alzheimer's disease (10%), mental or emotional illness (7%), cancer (7%), heart disease (5%), and stroke (5%). Caregivers provide an average of 20 hours of care per week, and caregiving lasts an average of 4.6 years. One in seven caregivers provides care over and above regular parenting to a child with special needs. Attention-deficit disorder and attention-deficit hyperactivity disorder account for the greatest proportion of the care, followed by autism, mental or emotional illness, and developmental delay or mental retardation. The 79-page report, which was funded by the MetLife Foundation and published by the National Alliance for Caregiving (NAC) in collaboration with AARP, is based on interviews with 1,480 randomly chosen caregivers. It is available on the NAC Web site at www.caregiving.org.