It's usually not a big deal.
Just make sure you stop what's causing it - if anything. You may be leaning on your elbow at work/school a lot and not realize it, for example.
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ech·o cham·ber
/ˈekō ˌCHāmbər/
noun
An environment in which a person encounters only beliefs or opinions that coincide with their own, so that their existing views are reinforced and alternative ideas are not considered.
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