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And here’s the kicker: complaining damages other areas of your brain as well. Research from Stanford University has shown that complaining shrinks the hippocampus—an area of the brain that’s critical to problem solving and intelligent thought. Damage to the hippocampus is scary, especially when you consider that it’s one of the primary brain areas destroyed by Alzheimer’s.
Complaining Is Also Bad for Your Health
While it’s not an exaggeration to say that complaining leads to brain damage, it doesn’t stop there. When you complain, your body releases the stress hormone cortisol. Cortisol shifts you into fight-or-flight mode, directing oxygen, blood, and energy away from everything but the systems that are essential to immediate survival. One effect of cortisol, for example, is to raise your blood pressure and blood sugar so that you’ll be prepared to either escape or defend yourself.
All the extra cortisol released by frequent complaining impairs your immune system and makes you more susceptible to high cholesterol, diabetes, heart disease, and obesity. It even makes the brain more vulnerable to strokes.
