Richard Wiseman is announcing the start of perhaps his most ambitious mass participation study yet! The study aims to cheer up the world! It will take place, between Monday 3rd – Friday 7th August. Those taking part first complete a quick questionnaire assessing their current level of happiness. They then see a short video describing a happiness boosting exercise and are asked to repeat it each day of the study. At the end of the project they again rate their level of happiness. The End.