A biological factor is anything that affects the function and behavior of a living organism, according to Psychology Dictionary. These factors can be physical, physiological, chemical, neurological, or genetic. Biological factors are the primary determinant of human behavior and are routinely examined when studying the causes of mental illness.Know More
WebMD states that the main biological factors implicated in mental illness are genetics, infection, brain defects or injury, prenatal damage and substance abuse. Due to the environmental factors which can influence the onset of mental illness such as trauma, abuse or stress, a person genetically predisposed to a mental illness may or may not finally express the illness.
Certain infections have been linked to brain damage and aggravation of mental illness symptoms. An example of such an infection is pediatric autoimmune neuropsychiatric disorder (PANDA); this affects children and is linked to obsessive compulsive disorder and some other mental illnesses, according to WebMD. The infection that triggers PANDA is caused by the streptococcus bacteria. Mental illness can occur due to defects or trauma to the brain as an adult or during fetal development. Long term substance abuse may cause anxiety, depression, or paranoia. Examples of other biological factors that can trigger mental illness are poor nutrition and exposure to toxins.Learn more about Biology
A physiological change is a change in the normal function of a living organism. An example of a physiological change is the everyday shedding of dead skin cells in humans.Full Answer >
Biological science, or biology, is the study of living organisms, such as plants, animals and other living organisms. The subject of biology is divided into many separate fields, such as behavior, human anatomy, botany, physiology, zoology, ecology and genetics.Full Answer >
Biological motives are the driving force behind goal-oriented behaviors that result from an individual's physiological state. Some examples of biological motives are an individual's response to hunger, thirst, temperature change or the need for rest. Biological motives are usually differentiated from those that are influenced by society, but they can also be shaped by the meaning behind the resulting behavior or by its social and cultural context.Full Answer >
Biological disasters are outbreaks of diseases or contagions of plant and animal life on an epidemic or pandemic level or infestations of animal or insect life on an epidemic or pandemic level. Examples of biological disasters include cholera and influenza H1N1 (swine flu).Full Answer >