Clemens Wagner was born in 1958 in St. Gallen, Switzerland. After visiting an engineering college and two years of working experience he went 1986 to the University of Basel, Switzerland, to study Physics and Mathematics. Having finished the master diploma in 1991 he did his PhD work in Biophysics about thermokinetic modeling of the electron transfer chain in the thylakoid membrane of chloroplasts at the Biozentrum of the University of Basel under the supervision of Prof. D. Walz. His first fellowship from the Swiss National Science Foundation brought him 1996 to the laboratory of Prof. G.S. Tannenbaum at McGill University in Montreal, Canada, where he started to develop a model for growth hormone oscillations in the rat. He did a second postdoctoral study in the laboratory of Prof. T. Kiefhaber at the Biozentrum in Basel investigating the properties of intermediates in the protein folding process. In 1999 he got appointed to the University of Bern, Switzerland, as Research-Assistant in the group of Prof. J. Stucki. He investigated neural networks, however, he became even more interested in the analysis of metabolic networks. In 2004 he was promoted to Lecturer of the University of Bern and since 2005 he also works at the KSR in Romanshorn, Switzerland.