Britain's top health authority is officially rejecting transgender ideology and declaring that biological sex is a reality, while "gender identity" isn't. The U.K.'s National Health Service (NHS) is revising its constitution to state, "We are defining sex as biological sex." The proposed constitutional revisions stress a need for "respecting the biological differences between men and women," further warning, "If these biological differences are not considered or respected, there is the potential for unintended adverse health consequences."