References
The references there are information about our subject. There are people in the world who already solved the problem we propose and this serves as a base to carry out our project. then we will explain these references:


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Sleep and anxiety. Tips for sleeping well.
Reference 1 : Hernando R. & Gómez R. (2001). Sueño y ansiedad: Recomendaciones para dormir bien. Retrieved September 21, 2014 from Clínica de la Ansiedad website: http://www.clinicadeansiedad.com/02/99/Sueno-y-ansiedad:-Recomendaciones-para-dormir-bien.htm
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How can you control your dreams?
Reference 1: Jordan Lite. (2010). How can you control your dreams?. Julio 29, de Scientific American Sitio web: http://www.scientificamerican.com/article/how-to-control-dreams/

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Your sleep Cycle and Revealed

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Learning to know and handie insomnia

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Anatomical basis of sleep
Velayos J.L., Moleres F.J., Irujo A.M., Yllanes D., & Paternain B. (2007). Anatomical basis of sleep. Retriver September 13, 2014 from: http://scielo.iscii.es/pdf/asisna/v30s1/02.pdf

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Healthy sleep
the President and Fellows of Harvard College. (2008). healthy sleep. 2008, de Division of Sleep Medicine at Harvard Medical School and WGBH Educational Foundation Sitio web: http://healthysleep.med.harvard.edu/healthy/matters