A poll of over one million workers in the US by Gallup found that leaving a bad manager was the number one reason workers quit, and 75% of those left the job voluntarily because of their boss and not the job itself.

Another essential reason is common sense: the desire to move to a new level in your career is a common reason for leaving a job.

A recent Pew Research Center Survey showed that low pay (63%), a lack of opportunities for career advancement (63%), feeling disrespected at work (57%), and childcare issues (48%) were the most significant determinant for employees quitting their jobs in droves.

Of course, it is better to find another job first, but sometimes quitting, even without a backup job, is just necessary. When your current job is toxic, you might need more time to devise a plan before getting yourself out of there.