Ralf HenkelRalf Henkel, BEd, PhD, Habil., studied Biology and Chemistry at the University of Marburg, Germany, and obtained his PhD in 1990. Ralf continued his post-doctoral training and obtained his Habilitation at the University of Giessen, School of Medicinein 1998. From 1998 to 2004, he was an Assistant, Associate and Extraordinary Professor, at the Justus-Liebig University of Giessen, Germany, before he accepted a Full Professorship at the Department of Urology at the University of Jena, Germany. From 2005 to 2020, he was Professor and Head of Department at the Department of Medical Bioscience at the University of the Western Cape, Bellville, South Africa. He is also Honorary Professor at the Universidad Peruana Cayetano Heredia, Lima, Peru, and Editor-in-Chief of Andrologia. Ralf has published more than 140 original and review articles as well as 46 book chapters and supervised more than 70 Hons/MSc/MD/PhD postgraduate students’ theses. For his research, Ralf received 16 awards. Ralf has received 26 research grants for numerous research projects to investigate the impact of oxidative stress on sperm functions, DNA fragmentation and fertilization, as well as the effects of Herbal Medicine on male reproductive functions including prostate cancer and benign prostatic hyperplasia. Read More Read Less