Social capital examines feelings of safety when walking in the community, civic engagement, neighbourliness, social networks and social support. It is argued that improved social capital can have a positive influence on the mental health and well-being of the people living in the community. However, it can sometimes be a negative effect with improved social capital such as social networks which, for example, lead to easier access to smuggled tobacco or drugs, peer-pressure to continue smoking or eating a poor diet. There are different types of social capital. Bonding social capital is narrow and more internal, and relates to immediate families, close friends and neighbours. Bridging social capital is wider and more external, and relates to looser ties, associated with more diverse relationships such as those with colleagues, acquaintances and other communities. Two local surveys have been undertaken to examine levels of social capital in Hull, and most of the subsequent local Health and Wellbeing Surveys have also included questions relating to social capital such as levels of trust of neighbours, feelings of safety when walking alone in the local areas during the day and after dark, frequency of speaking to non-household family, friends and neighbours, knowledge and involvement in things that are happening in the local area, and social support.