This related to activities and consisted firstly of two questions relating to their general level of physical activity: this was assessed on a 6-point scale from movement associated with necessary (household) chores to keep-fit/heavy exercise or competitive sport, an item based on previous research [63]. Participants were then asked to indicate how many days in an average month they took part (for more than 20 minutes at a time) in any vigorous sport or physical exercise. The second part of this section consisted of a measure of their participation in a selection of 15 intellectual and social activities, drawn from those most commonly used in previous work in the field [64,65]. These included, for example, visits to the library, watching television, visits to friends or family or trips to the theatre or sporting events, and the frequency of participation was measured on a 5-point scale (from every day to less than once a year/never). Additional spaces were provided for participants to note activities in which they took part but that weren't listed in the table. Participants were then asked to
