When we lose enthusiasm for work, it is because we are tired. And not only physically. After years of managing pressure, expectations, and responsibility, there comes a point when the body and mind become saturated. Tolerance for stress drops, and what you once handled without thinking now feels heavy. It is not laziness. It is accumulated wear. It is a sign that you have pushed beyond what you could sustain.
It can also be a loss of meaning. If work no longer fits what you need today, your mind disconnects. Before, you could compete and take on more load. Now you seek stability and calm. That shifts your priorities. Not wanting to work as you did before does not mean you want to do nothing. It means you do not want to return to the same level of demand. The issue is not whether to work or not. It is deciding what kind of life you can maintain without breaking yourself again.