Prof. Dr. Wiesław Pilis graduated from the University of Physical Education in Katowice (Poland) in 1975. He received his doctorate at the University School of Physical Education in Wrocław in 1983 and became a professor in 1999 at the University School of Physical Education in Kraków. Moreover, he implemented four central research projects. He completed a long-term research internship at the Department of Applied Physiology, Medical Research Center, Polish Academy of Sciences in Warsaw (Poland), and research stays at the Institute of Sport, Warsaw (Poland), at the Department of Physical Education, Odense University, Odense (Denmark), at Palacký University in Olomouc (Czech Republic), and at Shree Hanuman Vyayam Prasarak Mandal, Amravati (India). Prof. Pilis conducts research in the field of metabolic and hormonal conditions during increased physical activity and various types of diets and hunger (fasting) in humans and experimental animals. As a professional coach in the field of strength sports, he combines practical observations with the results of laboratory tests.