Interesting - could you circulate the answers? Someone from a health promotion background might know - Kate >>> David Bulpitt <[log in to unmask]> 24/09/03 20:58:00 >>> I have been approached by one of Essex Police's managers asking whether there is a proven correlation between physical fitness and alertness/ concentration. I have googled, medlined embased etc but can really only get soft stuff off the databases or loud opinions from people with axes to grind from google. Is anyone aware of anything concrete or is one of those "everyone knows" that it is true? Many thanks! David