Authors Mark Hines My PTontheNET Content My PTontheNET Courses Mark Hines is an Exercise and Human Physiologist, based in London, England. He is currently working towards his MPhil and PhD in Biomedical Science and Biomechanics, respectively. Mark lectures on biology, cardiology, gut health and function and exercise physiology. He also writes and delivers courses and other educational material on nutrition, movement specificity and exercise programming. Mark is an endurance runner and competes in various ultra-marathon adventure races.