A Review on Fear, Anxiety and Anxiety Disorders

Fear and anxiety have been among the most important problems of humankind throughout the ages. As Maslow (1970) said in his hierarchy of needs, the need for security is one of the most basic needs. People want to feel safe. Therefore, they fear things that are foreign and unknown to them. Primitive people’s earthquake, flood, fire, drought, severe cold and storms; They could not be protected from wild animals and epidemic diseases. When faced with these situations, they experienced great fears. Today, with the advancement of medicine and technology, people are protected from many dangers experienced by primitive people, but this time they have begun to face recent problems. Especially with the increase in population, natural resources started to deplete, and a part of the world population faced hunger and malnutrition. In addition, the resulting chemical wastes cause pollution of the seas and drinking water and exceed the limits that threaten the lives of all living things in these environments. The destruction of natural resources, fires caused by humans in the Amazon forests and in many parts of the world pollute the air we breathe; Uncontrolled use of greenhouse gases causes global warming and threatens the life of all living things