An interesting dive on what hygral fatigue is and the supporting evidence as well as the evidence against it.
![](https://lemmy.world/pictrs/image/14a0eb5f-7215-4661-a50e-aacac0ccd753.jpeg)
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[Sarah Ingle video](https://www.youtube.com/watch?v=FdQnlQRlM2w&t=71s)
[Afobe Atoyebi video](https://www.youtube.com/watch?v=DbWa_xzrUu8&t=264s)
[Science-y hair blog article](https://science-yhairblog.blogspot.com/2013/07/hair-swelling-in-water.html)
[Sura Kamil blog article](https://surakamil.medium.com/hygral-fatigue-is-a-myth-why-we-all-need-a-healthy-dose-of-skepticism-f50aa9ae1aa5)
[Secondary Ion Mass Spectrometric investigation of penetration of coconut oil and mineral oils into human hair fibers: Relevance to hair damage” Published in Journal of Cosmetic Science , 2001 , Volume 52 , Issue 3 , pp. 169–184](https://library.scconline.org/v052n03/13)
[Lee Y, Kim YD, Hyun HJ, Pi LQ, Jin X, Lee WS. Hair shaft damage from heat and drying time of hair dryer. Ann Dermatol. 2011 Nov;23(4):455-62. doi: 10.5021/ad.2011.23.4.455. Epub 2011 Nov 3. PMID: 22148012; PMCID: PMC3229938.](https://pubmed.ncbi.nlm.nih.gov/22148012/)
Stam PB, Kratz RF, White HJ. The Swelling of Human Hair in Water and Water Vapor. Textile Research Journal. 1952;22(7):448-465. doi:10.1177/004051755202200702
(Couldn't find a free link to this one)
[Gamez-Garcia, M. The cracking of human hair cuticles by cyclical thermal stresses. 1998 May. Journal of the Society of Cosmetic Chemists 49(3):141-153](https://www.researchgate.net/publication/286849276_The_cracking_of_human_hair_cuticles_by_cyclical_thermal_stresses)
[Yang FC, Zhang Y, Rheinstädter MC. The structure of people's hair. PeerJ. 2014 Oct 14;2:e619. doi: 10.7717/peerj.619. PMID: 25332846; PMCID: PMC4201279.](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4201279/)
[Franbourg A, Hallegot P, Baltenneck F, Toutain C, Leroy F. Current research on ethnic hair. J Am Acad Dermatol. 2003 Jun;48(6 Suppl):S115-9. doi: 10.1067/mjd.2003.277. PMID: 12789163.](https://sci-hub.hkvisa.net/10.1067/mjd.2003.277)