Dormir de lado causa arrugas
https://www.xesusgonzalez.com/2016/08/dormir-de-lado-causa-arrugas.html
Un estudio ha demostrado que dormir de lado o boca abajo deforma la cara y genera arrugashttp://www.surgery.org/media/news-releases/study-shows-stomach-and-side-sleeping-positions-cause-facial-distortion-and-wrinkles-over-time