Imagine a nation of people who no longer know where their center lies. That's what Japan has become in recent decades.
One of the major casualties of the Japanese language's rapid and ongoing evolution is the diminishing use of body-related phrases — a phenomenon that reflects how Japanese people's once-visceral connection between their bodies and minds is these days rapidly attenuating.
Although it is of course fallacious to generalize, people past working age nowadays tend to have a far better perception of their bodies than their younger contemporaries. Evidence of this is clear in the kind of language they use.