It’s another case of “just believe” to make your life better. New research shows if you are told you slept well (and that sleep is important for memory and clear thinking) then you will perform better on tests than someone told they slept poorly.

I definitely used this trick in college!

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Just thinking you had a good night’s sleep can improve cognitive skills
Just thinking you had a better night sleep creates a placebo effect that can improve your cognitive abilities, a new study has found.

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