![Woman with a headache while working on PC in the office.](https://fortune.com/img-assets/wp-content/uploads/2024/12/GettyImages-2149224644-e1734126019778.jpg?w=1440&q=75)
How do respondents know they’re feeling burnt out? According to the survey, they are more likely to make mistakes at work (41%), they rely on caffeine too much at work (36%) and they’re more likely to be grumpy with their co-workers (29%).
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