a b Castrodale, Jelisa (March 21, 2018). "Beer Company Pulls Campaign that Encourages Discrimination Against Redheads". Vice . Retrieved November 19, 2021.

Studies have shown that people with red hair experience pain differently than others. Recent research suggests that redheads have a generally higher pain tolerance and respond more effectively (i.e. lower doses) to opiate medication. [44] Persons with red hair may also experience changes in temperature faster and with greater intensity than others and biosynthesize Vitamin D more efficiently than those without red hair. [43] For unclear reasons related to the MC1R mutation, men with red hair are significantly less likely to develop prostate cancer than others. [45] Ghazali, Rahmah (11 January 2022). "Sheffield human rights advocate calls for more protection for children with red hair". Sheffield Star. Archived from the original on 2022-01-11 . Retrieved 15 January 2022.The science behind anti-redhead prejudice". The Week. January 8, 2015 . Retrieved November 18, 2021. a b Fogg, Ally (15 January 2013). "Gingerism is real, but not all prejudices are equal to one another". The Guardian . Retrieved November 18, 2021. Culzac, Natasha (August 24, 2015). "Documenting Gingers of Color". Vice . Retrieved November 18, 2021.

Wagstaff, Keith (August 10, 2014). "What's up with all the redheads in TV ads?". TODAY . Retrieved November 18, 2021. a b Mahmud, Nafees (November 12, 2020). "What lies beneath the stigmatisation of redheads in the UK?". TRT World . Retrieved November 18, 2021. Cryos International, one of the world's largest sperm banks, said in 2011 that they had too many sperm doses from red-haired individuals, but agency director Ole Schou said that they "have nothing against red-haired donors". [32]a b Sherrow, Victoria (2006). Encyclopedia of Hair: A Cultural History. Greenwood. p.152. ISBN 0313331456.