Summary: <p>Swollen bums and flushed faces: we know that chimpanzees and other primates advertise their fertility with conspicuous physical transformations, but what about humans? In this episode we look at skin colour and the menstrual cycle.</p><p><audio> </audio> </p><p><a href="http://archive.org/download/pap-2015-06-30/pap-2015-06-30.mp3">Download the MP3</a> </p><p><b>Rate me!</b><br> Rate, review, or listen <a href="http://www.robertburriss.com/itunes">in iTunes</a> or <a href="http://www.stitcher.com/s?fid=63199&refid=stpr">in Stitcher.</a> </p><p><b>Read the transcript!</b><br> <a href="https://medium.com/@RobertBurriss/skin-color-and-the-menstrual-cycle-80bcc14b61be">Do Women’s Faces Change Color Over the Menstrual Cycle?</a></p><p></p><div class="separator" style="clear: both; text-align: center;"><img border="0" src="http://4.bp.blogspot.com/-7xB5g0BMnNA/VZLeqTeyGOI/AAAAAAAABew/zSryVXYS-Eg/s1600/90907254_d9c8ebb42a_o%2B2%2B%25280-00-00-00%2529small.jpg"></div><p><i>I and my collaborators photographed women multiple times over their cycle and analysed patches of cheek skin for colour changes. Image modified from <a href="https://www.flickr.com/photos/alixklingenberg/90907254">a photo by Alix Klingenberg</a>.</i></p><p><b>The articles covered in the show:</b> </p><p>Burriss, R. P., Troscianko, J., Lovell, P. G., Fulford, A. J. C., Stevens, M., Quigley, R., Payne, J., Saxton, T. K., & Rowland, H. M. (2015). Changes in women’s facial skin color over the ovulatory cycle are not detectable by the human visual system. <span style="font-style: italic;">PLoS One</span>. <a href="http://robertburriss.com/pdfs/burriss_15_plos.pdf">Read paper</a></p>
