[ENTELECHY_UNLTD]

Hello @chemicalmatt ! HUGE thank you for all the amazing info you have contributed to this forum. I appreciate your expertise and experience very much and make a point to look for your responses. I have learned a lot from you and am very grateful! 🙂

To answer your question… I have experienced this firsthand. I had stick-straight, type 1A hair my entire life. I am now 51, and about a year ago my hair turned wavy/curly. I’d say it’s type 2b but with some ringlets. I have had to relearn how to manage my hair because it’s so very different now.

My understanding is the shape of the hair shaft determines whether hair is curly or straight, but what makes the shaft change shape (esp after 50 years)?? Given my age, I would guess hormones, which would also explain why some people experience a change in hair shape following puberty.