The mental health differences between remarried women and unpartnered women appear to be due to differences in economic resources and social support. Findings also indicate that the mental health benefit of marriage for women is primarily driven by the fact that married women tend to be physically healthier than cohabiting and unpartnered women. There may be a selection effect whereby healthy women are more likely to remarry, and subsequently, based on their greater physical health, experience less depression. On the other hand, even when controlling for economic resources, social support, and health, married men experience fewer depressive symptoms compared to cohabiting or unpartnered men. This is likely because depression symptoms in married men are so low.