Dr. Stefan Frädrich is a physician, bestselling author and founder of Greator. He looks back on more than twenty years of coaching experience and speaks as a speaker on numerous stages in Germany.

His core message "Change is possible" is reflected in all his projects. His seminar "Non-smoker in 5 hours" as well as the book series "Günter, the inner pig" are also internationally known. 

He hosted his own health programs at WDR and Pro7 before founding GEDANKENtanken (now Greator) in 2012.