Relevant evidence changes frequently due to the dynamic nature of our technological advancements in medicine and our understanding of ethics itself.[37] At the moment, although organ trade is illegal in almost all countries, it is still difficult to provide a solid conclusion in the field of business ethics without a bias based on one's basic beliefs, culture, or religion. Particularly, religion plays a major role in the topic of bodily autonomy as it relates to organ trade. Bodily autonomy is defined as the "ability to make choices about how [one's] body is to be treated by others."[83] Many religious activists and theorists say this idea of bodily autonomy treats the body as property, which violates many religious views that the body and self are one entity.