Peter Hindmarsh is a Professor of Pediatric Endocrinology in London, United Kingdom. He has published extensively on cortisol physiology and pharmacology and how these impact on replacement therapies for adrenal insufficiency. He is interested in better delivery of treatment in a more physiological manner as exemplified by the delivery of hydrocortisone using pump therapy to mimic the circadian rhythm.As the parent of a young adult with Salt Wasting Congenital Adrenal Hyperplasia, Kathy Geertsma became chair of a Congenital Adrenal Hyperplasia Patient, Parent and Carer Information and Support Group known as CAHISUS. She has extensive contact with patients, parents, and carers from all over the world who struggle with confirming the cause for adrenal insufficiency and getting access to proper treatment. As a result, she offers a unique perspective about how practitioners can better serve the needs of their patients.