In the present report the important aspect of weak attraction force between the molecules (van der Walls forces) has been observed and it plays very major role in the formation of complex structures of human bodies. Van der Waals attraction=hydrophobic bond-The weakest of chemical bonds. For molecules which are formed with many nonpolar covalent bonds, these electromagnetic attractions, while individually weak, can produce cumulative forces or keeping the components of cell membrane material in the lipid bilayer configuration. The availability of previous work from different sources is cited in this paper. The purpose of this collective report from different source is to draw attention of researchers and scientists on this weak force in medical aspects which is otherwise ignored in calculation.