It has long been held in industry and society at large that breaks in your education and career are huge negatives that must be avoided at all costs. While it is true that long breaks spanning years to decades can definitely have that impact on your hiring potential, well-timed, short breaks can have the opposite effect on your mental health and general well-being.
It is important to acknowledge that none of us work in completely sterile, mechanical environments free of the risks and perils brought on by human error and each one of us have different capacities for different tasks that add up to our nature and capability to function in our respective work environments. Identifying the need for short breaks, enforcing boundaries and actually timing them in a manner that helps your team members and your organization succeed is a skill that remains yet to be recognized. In a society plagued by ever-increasing demands on interpersonal relationships and industrial exploitation of its working population that skill is a strength to possess. It is in no way a weakness as many may suggest. So take your breaks if only they'll make you feel like a human being again, and actually enjoy them.