The disconnect between our brain and body

We all had the experience of eating while not being hungry, sleeping without feeling fatigued, or buying things which we had no use for.
We do things, sometimes, because of how they make us feel, not necessarily because of their utility.
We also, in the absence of a real fix to our emotional or spiritual issues, fall back on palliatives like indulging in food, taking unwarranted risks, or engaging in any kinds of excesses.
We got so detached from ourselves that we rely on mercurial elements to predicate our decisions on.
Our mood, our dispostion and our current inclinations decide what our bodies need. We end up with a need and a supply that are in odds with each other.
The channels of communications between our brain and our bodies that, in normal functioning conditions, convey unadultered signals, got somehow hijacked by the appeal of the glistening donut, the allure of the colorful packaging, and all the fabricated associations between goods and eleveted social status, that marketers have insidiously injected into our brain.
We get distorted messages from our brain and we act on them, which is akin to roaming the streets of Rome while holding a map of Venice.
Resetting our internal communication channels require a certain amount of mild asceticism, where moderate simplicity is reintroduced into our life.

We could do that whenever we feel that the schism between what we need and what we provide for ourselves is widening.
Symptoms of that state manifest themselves in a persisting and unjustifiable state of sadness, emptiness or unfounded feeling of discomfort.