File:Negative effects of restricted sleep on facial appearance and social appeal.pdf
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![File:Negative effects of restricted sleep on facial appearance and social appeal.pdf](https://upload.wikimedia.org/wikipedia/commons/thumb/2/26/Negative_effects_of_restricted_sleep_on_facial_appearance_and_social_appeal.pdf/page1-413px-Negative_effects_of_restricted_sleep_on_facial_appearance_and_social_appeal.pdf.jpg?20240531162616)
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