It all comes down to protection! The brain needs to be able to ignore predictable everyday sensations, so it can be ready for more important ones. Imagine if it responded dramatically every time the soles of your feet touched the ground, or you blinked your eyes. Instead, it must be ready to react to unexpected, potentially dangerous sensations like, say, a red-back spider crawling down your neck.

Read more about Everyday Sensations on Last.fm.


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