- Action for Happiness – laughter has serious benefits, 2011
- Oxford University study, BBC news, 14th September 2011
- Make ’em Laugh: Using Humour in Training By Dawn Smith, Trainingzone.co.uk, August 28 2007
- Getting Going – Money & Happiness: Here’s Why You Won’t Laugh All the Way to the Bank By Jonathan Clements, Page D1 Wall Street Journal, August 16 2006
- Event raises more than a chuckle BBC News Online, Sunday, 28 May 2006
- mind, body, soul: Laughter Therapy By Roz Lewis, Weight Watchers website 26 Jan 2006
- Left, right, left, right… By Jean-Paul Flintoff
- A laugh a day may help to keep a heart attack away By Jeremy Laurance, Health Editor
- Humour in the Workplace – does it matter? By Joe Hoare
