I 100% disagree. I did all of this and thought yay I'm one of the lucky ones until month 6 hit and my hair fell out in huge clumps. That lasted for about a year. All the research I did you can't prevent it and it has more to do where you hair is in the growth cycle when you have surgery. I still take biotin daily to make my hair stronger and hope one day it gets back to where it was.