So in this particular case, the water molecules were trapped around that hydrophobic region. But because we formed these structures and these structures, that leads to a maximum interaction between the water molecules and these polar heads, at the same time it locks in these or it hides these hydrophobic regions on the interior portion of the mind cell and the interior portion of the cell membrane, the bilayer membrane. And so we have these stabilizing lung dispersion forces that exist on the interior. And then we have the polar interactions, we have hydrogen bonds between the water molecules in the aqueous environment and these polar heads, and also the electrostatic interactions between these nearby polar molecules which are lined right next to one another. So we see that therefore, the tails spontaneously aggregate in the interior of the membrane because this is what creates a stabilizing system. So it allows those trap water molecules to be released and how these water molecules can form stabilizing hydrogen bonds with these polar heads.