The first commercial deodorant, Mum, was introduced and patented in the late nineteenth century by an inventor in Philadelphia, Pennsylvania, Edna Murphey. The product was briefly withdrawn from the market in the U.S., but is currently available at U.S. retailers under the brand Ban.
Not to be confused with Behavioralism. Behaviorism (or behaviourism) is an approach to psychology that focuses on an individual's behavior. It combines elements of philosophy, methodology, and psychological theory.
The biological perspective is one of the major approaches to doing psychological research, which is focused on the idea that behaviors have biological causes. Also known as physiological psychology or biopsychology, it has strong links with many different sciences, particularly neurology and genetics.