In 2007, comedian and broadcaster, Dermot Whelan, arrived at a comedy festival in an ambulance. It was a hell of an entrance. He had had a panic attack enroute. Realising that this was not a sustainable way to travel to future gigs, Dermot decided to become a meditation teacher and learn how to destress without annoying the emergency services.

Now a leading corporate stress management expert, Dermot asks the question for all of us: how do we know when our minds are full? And what can we do about it before our heads are wrecked?