Androgen Deficiency in the Adult Male: Causes, Diagnosis and Treatment - 2nd Edition by Malcolm Carruthers, MD, FRCPath, MRCGP. With the author’s new theory of androgen resistance, this is a game-changing book in the diagnosis and treatment of androgen deficiency. It shifts the emphasis in diagnosis to the symptomatology rather than laboratory data, and in treatment, to the reduction of factors causing resistance. Rather than just raising testosterone levels. As well as making the case for it being potentially the most important form of preventive medicine in men for the twenty-fist century, its importance in the treatment of diabetes, metabolic syndrome, cardiovascular disease, and even neurological conditions such as Alzheimer’s and Parkinson’s Diseases is emphasized. This book is of interest and importance to physicians and general practitioners as well as andrologists and gives the evidence needed for the widespread use of testosterone treatment.