Yes you make a good point (one I have experienced myself). I spent a lot of time as a teenager learning to become aware of the subtle signs your body gives you to indicate what it needs to remain balanced (I got these exercises from a Marine hand-to-hand combat booklet if you can imagine). It takes practice and discipline (and it's easy to overlook when you're busy) but it is possible to "tune-in" to these subtle signals.

It also helps to remove yourself from "modern society" now and again. A few days in the woods away from artificial stimulus goes a long way in this regard.