Burnout and overload
Burnout at Work: From "I Don't Care" to Breaking Down

"I don't care" rarely arrives as a decision. First you just get more tired than usual, then you stop arguing where you used to argue, then you agree to everything just so no one bothers you. Indifference at work isn't laziness or a bad character — it's the mind's way of surviving prolonged overload.
The difference between tiredness and burnout is that tiredness passes after rest, while indifference doesn't. If after the weekend you return to the same thoughts of "what's the point of all this," it's no longer about a hard week.
What Exactly Burns You Out at Work
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