The Edinburgh based Centre of Health and Wellbeing offers laughter workshops with the aim of improving health.  The Centre has been delivering laughter events, projects and training using laughter for the last five years in the health, education and the corporate world.  Evaluation of their recent workshops showed 90% of participants were in a good or very good mood after the workshop, compared with 51% before the sessions – an increase of 39%. The effect lasted the remainder of the day on which the workshop took place. For more information please visit this website.