Prof. Kleine-Gunk is a learned gynecologist with a specialisation in gynecological endocrinology (with main-focus on menopause treatment).

For more than 20 years Prof. Kleine-Gunk´s special interest has been in Anti-Aging/Longevity Medicine. Since 2009 he is President of the German Society for Prevention and Anti-Ageing Medicine (GSAAM)  (GSAAM), which is the biggest Anti-Aging Society in Europe.

Among his numerous publications is the first German Textbook on Anti-Aging Medicine as well as a number of patient guides, which have been translated to several languages.

He is also among “Germany´s Top 100 Speakers” and gives regular lectures as well nationally as internationally.

One of his main focusses is China where he is teaching at the Nanjing university, works as a co-organizer of the China´s yearly Anti-Aging congress in Shenzhen and is a consultant of the Chinese government on the project of “Health cities”.