Additional sources:
http://www.huffingtonpost.com/2013/05/22/stress-attractiveness-women-face_n_3319682.html
http://www.livescience.com/10073-women-prefer-chill-guys.html
http://www.huffingtonpost.com/2013/03/07/worst-foods-stress_n_2773760.html
http://news.yale.edu/2000/09/22/stress-may-cause-excess-abdominal-fat-otherwise-slender-women-study-conducted-yale-shows
http://www.umc.edu/uploadedFiles/UMCedu/Content/Education/Schools/Medicine/Clinical_Science/Otolaryngology__Communicative_Sciences/Handouts/AcneMyths.pdf
http://www.webmd.com/skin-problems-and-treatments/acne/acne-care-11/stress-and-acne
http://www.webmd.com/beauty/face/is-your-skin-stressing-you-out?page=2
http://www.mayoclinic.org/medical-edge-newspaper-2011/nov-18a.html
http://healthland.time.com/2011/09/27/the-stress-of-divorce-writ-on-womens-heads/
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0040186
Stress And Attractiveness: How Chronic Stress Can Affect Your Physical Appearance
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