In our society characterized by stress, environmental pollution, and rush health-related weight bearings increase constantly. This is expressed in various ways, including through a steady increase of problems in the field of virility, fertility, and potency. Different companies have brought chemical products on the market. Many of these can have significant side effects. The expert in natural therapy, Dieter Mann, presents some interesting, natural alternatives, their areas of application and modes of action in this book. Note: Some of them have completely different mechanisms of action than those from the test tube and can possibly help people that found no help in conventional remedies.