When we begin to complain, we disable the part of our brain that is responsible for
Happiness
Creativeness
Problem solving
Positivity

Damage to the hippocampus is scary, especially when you consider that it's one of the primary brain areas destroyed by Alzheimer's. 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.

Explanation:

she forgets to repeat her message as often as necessary

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