Nasal continous positive airway pressure (CPAP) masks can change the facial structures of users.
CPAP masks are the most common treatment devices for obstructive sleep apnea (OSA). Sufferers need to put the mask on during sleep to regulate their breathing.
Recent research from the University of British Columbia suggests that the mask can change carniofacial structures of sufferers who have been using it for two or more years.
However, researchers say that the conclusions need to be further reinforced by research to assess longer years of use.

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