In relation to physical activity, the findings of the present study indicated that 40% of females and 66% of males participated either in vigorous exercise for at least 20 minutes on ≥3 days in the week preceding the survey, or participated in moderate exercise for at least 30 minutes on ≥5 days in the week preceding the survey. This is analogous to reports from the USA, where 44.2% of students exercised vigorously for at least 20 minutes or moderately for at least 30 minutes on at least 3 out of the past 7 days (44). Similarly the exercise levels of the UK sample described in this paper appear encouraging (29% females and 47% males) when compared to Hong Kong, where 9% female and 26% male university students exercised vigorously for 20 min or more at least three times a week(8).