Except that the grind and constant stress of presidency visibly ages all presidents well beyond the years in office. (politics.stackexchange.com)
It's when you remain under constant stress without periods of recovery that you begin breaking down. (hardgainermusclebuilding.com)
When we are constantly in overdrive, we are putting constant stress on ourselves physically and mentally and leave ourselves incapable of being the best we can be. (sierranielsen.com)