Michał Oczkowski is an assistant professor of Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences-SGGW, Pland. He earned his PhD degree at Warsaw University of Life Sciences-SGGW (WULS-SGGW) in 2010. His main areas of didactic activity: human physiology; basics of human physiology; nutrition physiology; regulation of metabolism; health protection. His research interests include: the effects of nutrients on the hormonal regulation of the male reproductive system, especially on steroidogenesis and spermatogenesis; the effect of alcohol on the activity of pituitary-testis axis.