In recent decades, increased interest in the biological perspective has occurred due to the development of new drugs for psychological disorders and the development of new procedures to study the human brain. The biological perspective is a method of observing at psychological topics by studying the physical base for animal and human behavior. It is one of the main viewpoints in psychology and includes such things as learning the brain, immune system, nervous system, and genetics. The Biological Perspective pursues to control the psychological features of human behavior observing at indication from genetic and neurological edification as well as studies of the immune arrangement. Also known as bio psychology, it has engage in a major role in psychology from the beginning.