 Put another way, the biomedical framework of the body can be understood by considering what it excludes: spirit, vitality, and any other entity or property unknown to mainstream physicists or chemists. The concept  Physicalism  is closely related, but the term is perhaps not a perfect fit since it has taken on conceptual connotations and baggage through its use by analytic philosophers of metaphysics. The connection is that in the psychological biosciences, the “hard problem of consciousness” looms over everything: 