ABSTRACT
Biodiversity is one of the most important components of environmental issues but, dramatic decrease of biodiversity in last decades is threatening the future of humanity. Therefore, at the crossroads of environmental issues, as a key problem, the loss of biodiversity will be evaluated with the relations to other issues, but, especially as a health issue. In traditional societies, species of animals and plants provided many services for human health either directly or indirectly. Even today, biodiversity provides great opportunities for medical researches and pharmacology and it will be main component of this field in the future. Therefore, biodiversity will be analyzed as a medical and health issue, consequently as an existence matter of humanity. In this study, based on monographic researches and reports on specific areas of biodiversity, we will try to determine relationships between health issue and biodiversity, identify possible consequence of biodiversity loss in the field of human health.