n. Anything which affects the function and behavior of a living organism. Internally, this factor can be a physical, physiological, chemical, neurological, or genetic condition which causes a psycholo [..]

A chemical, physical, neurological or genetic condition that is associated with psychological matters.

biological factor include aspect such as fungi, bacteria, rodent........

Endogenously-synthesized compounds that may influence Biological Phenomena or represent quantifiable Biomarkers. Biological factors are a variety of extracellular substances that are not otherwise cla [..]