Welcome back to Grey Matter Hour, I am Fiona Castellan. Before we start, a confession. I once forgot the title of my own talk at a conference in Lisbon, in front of two hundred people. So today is personal. We are going to slow down the ninety seconds before you speak in public and look at every signal, from the little almond-shaped alarm in your temporal lobe to the adrenaline that makes your hands shake. Then I have a performance psychologist, Dr Marcus Whitfield, who has tested the calming techniques people swear by, and some of them do nothing at all. You will leave with two things that are proven to help and a better understanding of why your body does this to you. You are listening on Witspeak Podcasts. Deep breath, and here we go.