Ciekawostka: One in fourteen women in America is a natural blonde

Evidence: 59 • authority: 92

The Risk of Melanoma due to Exposure to Sun and Solarium Use in Poland: A Large-Scale, Hospital Based Case - Control Study.. Objective The incidence of skin cancer is constantly growing, it is considered a serious problem of public health. Most cases of skin cancer are caused by a combination of non-modifiable genetic, and modifiable environmental risk factors. The study objective was to analyse the correlation between pigmentation traits, excessive sunlight exposure, solarium use and the risk of melanoma development. Methods The study included 480 patients diagnosed with melanoma and 400 within the control group. Subjects diagnosed with the melanoma confirmed by histopathology were invited…

Evidence: 59 • authority: 72

The blonde versus brunette rivalry is a rivalry—whether real, imagined, or fictional—between people with blonde hair and those with brown (brunette) hair. In popular culture and everyday conversation, the words blonde and brunette are used as nouns to refer to women by these two hair colors. This supposed rivalry is a common fictional theme in books, magazine articles, film, and television. Rachel Reinke proposed that the spectacle of blonde and brunette women engaged in physical fights with each other has been a male fantasy for many years. Studies conducted in the Western world have found that dark-haired women are generally considered more attractive than blonde women. In East Asia, blon…

Evidence: 49 • authority: 92

A genome-wide association study identifies novel alleles associated with hair color and skin pigmentation.. We conducted a multi-stage genome-wide association study of natural hair color in more than 10,000 men and women of European ancestry from the United States and Australia. An initial analysis of 528,173 single nucleotide polymorphisms (SNPs) genotyped on 2,287 women identified IRF4 and SLC24A4 as loci highly associated with hair color, along with three other regions encompassing known pigmentation genes. We confirmed these associations in 7,028 individuals from three additional studies. Across these four studies, SLC24A4 rs12896399 and IRF4 rs12203592 showed strong associations with h…

Evidence: 49 • authority: 80

Testing a natural supplement for hair loss in men and postmenopausal women

Evidence: — • authority: 35