News Finding: Facial colour in women tracks their estradiol levels, gives information about reproductive cycle 
Paper Finding: Estradiol may increase blood flow to blood vessels close to the surface of the skin, increasing skin redness .
News Context: Facial colour in women tracks their estradiol levels, gives information about reproductive cycle 
Paper Context: For example, female rhesus macaques' ) and mandrills' facial skin becomes redder during the fertile phase of their ovarian cycles, complementing findings for similar changes in the color of female hindquarter skin also become darker during the fertile phase of their ovarian cycles ( . Estradiol may increase blood flow to blood vessels close to the surface of the skin, increasing skin redness . For example, increasing red, yellow, and light skin coloration increases the perceived health of white European and black African women's faces Re et al., 2011) .