> At the best of times these routines of habit are just an escape from the stress...
No, not an escape. Amongst the many benefits, exercise, meditation, etc are a means (but not the only means) to quiet the mind and give a pause to thought. They force you to focus on the present moment and not to dwell in the past or future. Humans are incredible prediction machines but generally not all too accurate. Too much time spent thinking about the past and future without balance of the present creates needless suffering. None of this is new and has been known for millennia.