That a Graves' disease or PMS can cause mood instability is known even by non-medical professionals in psychosocial fields. However, there is a wealth of other physical illnesses that can lead to psychological disorders. Who knows that panic attacks can be triggered by a so-called pheochromocytoma (adrenal tumor)? Or that elevated calcium levels can cause severe depression? The book clearly lists over 400 physical triggers of psychological disorders. Essential medical terminology is explained. It is an indispensable reference work for anyone wanting to untangle the complex relationships between physical and psychological symptoms.