Smith I. Jaja is a Professor of Physiology, he possesses experience in teaching physiology at undergraduate and postgraduate levels to different types of students that need to understand the basis of normal body function. His areas of research have been: (1) Cardio-respiratory changes in health and in disease. (2) Antioxidant properties of certain fruits and leaves. (3) Role and mechanisms of action of antioxidants (Vitamin C, Vitamin E and L-Arginine) in the management of sickle cell disease..