I have naturally curly, mid-brown hair. I have some grey hairs around the hair line of my forehead. Not unexpected at my age (41) and I feel fine about a few. However, some are really white and wiry/tough. As I have curly hair, when I tie my hair back these wiry ones can stick out at odd angles. I seem to recall hearing somewhere that if you pull out grey hairs, more will grow back or they will grow back stronger. Is this true? These wiry white hairs are also very resistant to my attempts at home hair dye too.