Internist and specialist in Rheumatology since 1988/1990, assistant medical director 1989-1996, medical consultant since 1997 (Berlin). Practicing Yoga since 1972. Touring India since 1983. Commissioner for Indian Medicine and member of the Council for Natural Medicine at the Berlin Chamber of Physicians 1992-1997. Participant of the ‘Foreigner’s Training Programme’, Gujarat Ayurved University, 1993-1995. Founding member and chairman of Microvita Research e.V. since 2007. Fellow of the Society for Microvita Research and Integrated Medicine since 2012.