Dr Bryna Chrismas is an Associate Professor in Exercise Science. Her research focusses on the effect of the climate (e.g. heat/humidity) on health and exercise performance in women. She is also the founder and CEO of Ran By Nature - sustainable and inclusive activewear made in the UK. Ran By Nature is more than clothing – it’s activism. Bryna is passionate about breaking down clothing barriers and gender stereotypes in sport and exercise.