Repeated at 11pm tonight BBC Radio 4:

• Off the Page - Dominic  Arkwright interviews my colleague and fellow MAPP graduate,  Miriam Akhtar about what happiness is and how she found it, as well as Dr Phil Hammond (a potential convert to positive psychology) and Guardian journalist Lucy Mangan (a dyed-in-the-wool sceptic). Miriam gives a very personal perspective on her discovery. You can find out how to do it for yourself using her Happiness Training Plan CD.