If coloring or decoloring have an effect on hair`s surface, ex. breaking cuticle,..., it can develope problems with hairloss due problems with elimination of sebum
Did you knew my fraternal friend Bryan? He was very smart guy, he observed great problems with the current theory but he was no so brave to indicate a new one. Do you know which products he used? Did you know the last one state of his hair? Do you know his beloved sister?
Regarding "laughing"...