What is social capital and how does it relate to health?

During the last 25 years, a new term has cropped up in social sciences, social capital. In the last 10 years, this term acquired a new dimension which relates it to health. Following an analysis of theoretical issues surrounding social capital and social support, recent research is used to illustrate how these are affecting health. It is argued that more theoretical development is needed before social capital can be used to form a new community nursing practice. Until then, the ideas of social capital (social contact, companionship, etc.) may guide our mode of operation during nursing interventions.