It's not that easy for someone to stick to a job that demands so much especially when it's affecting their health. No one shouldn't die over a Job just because they want to make a living. In my opinion, I feel one should be looking out for another opportunity better than the one giving them a whole lot of stress than to just stop the job with no hope of getting another. In all, prioritising one's inner happiness and health are important because when one dies, they will be replaced and work continues.