"Estás cansado de no poder dormir? ¿Consideras que has intentado hacer todo para eliminar el insomnio de tu vida? ¿Conoces las causas biológicas y psicológicas que lo provocan? ¿Crees que no tiene solución? Este libro es lo que necesitas."--Back cover. "Are you tired of not being able to sleep? Do you consider that you have tried to do everything to eliminate insomnia from your life? Do you know the biological and psychological causes that cause it? Do you think there is no solution? This book is what you need."- -Back cover.
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