When you’re a busy entrepreneur, it’s easy to convince yourself you need to just push through burnout. With people relying on you and endless problems to solve, many business owners feel like they don’t have the time or space to take a step back and deal with their mounting stress and exhaustion. Sure, a long vacation or a less intense schedule would be nice, but it will have to wait until some magically less stressful future time.

A portrait of the burned-out brain

We tend to think of burnout as an emotional or mental condition, and it certainly does have emotional and mental effects. But everything you feel or think arises from your brain, so mood swings, foggy thinking, or an extra quick temper are all reflected in the physical functioning of the brain somewhere. Research shows that, when it comes to burnout, those brain changes are anything but minor.

Tests revealed that the burned-out volunteers were much worse at controlling or suppressing negative emotions. That was no surprise. Overreacting and a tendency toward negativity are classic symptoms of burnout. What may be more surprising is what the researchers observed when they conducted brain scans of the two groups.

The burnout sufferers also had weaker connections between the amygdala and the medial prefrontal cortex, a part of the brain involved in executive function or the ability to stifle impulses, make long-term plans, and control our behavior in order to carry them out.

Translated into everyday language that means that the amygdala, which works kind of like your brain’s alarm system responsible for signaling when there’s something in your environment you need to be upset about, is overactive. Meanwhile, the systems meant to counteract the amygdala with logic, perspective, and coping mechanisms are weakened. It’s as if an emergency siren keeps blaring for every little thing and the off switch is sticky.

Unsurprisingly, that’s not just deeply unpleasant but bad for performance. A separate research review that looked at 15 high-quality studies on the cognitive effects of burnout found that “executive attentional and memory systems appear to suffer in association with burnout, and cognitive functioning is impaired in burned-out individuals,” APS also notes. Burnout officially does a number on your brain.

Can your brain recover from burnout?

That should serve as a warning to any wildly overworked professional out there who is considering pushing through their mounting burnout just a little bit longer. White knuckling your burnout if doing real damage to your brain.

Other activities besides therapy can help your brain recover too. Yale psychiatry professor Mark Rego has “suggested doing hands-on activities, such as arts and cooking, and indulging the senses — especially in nature — and talking to people often” to speed recovery. He also recommends “quieting the mind, whether through sports, long walks, or yoga.”