Hello Dr. Rassman,
I was wondering whether you thought that there was any merit in the following theory which explores the relationship between hair loss and progesterone/cortisol levels.
Thanks and keep up the good work!
Theories that reflect excess free radical damage are abundant. We really do not know enough about the free radical impact on hair. I would ask why some hair is impacted and not other hair. If the genetic issues that relate to defects in the formation of the hairs is explained by the missing progenitor cell theory, maybe there is more logic in the application of the theory. It makes for interesting reading and I would let the readership make up their own minds (read here: http://journal.frontiersin.org/Journal/10.3389/fcell.2014.00010/full).