Sure you can, you just need to rest to hair for a few days before you have it dyed. visit http://www.hair-color-ideas.net/right-hair-color-for-you for more info.
Probably! Every time you dye your hair you use chemicals that fry your hair and can make it very dry and brittle.
Not all hair colourers damage your hair it depends which one you use, but normally...
From what I have read in the past, blondes ( natural ones) have more hair, and they also lose more hair on a daily basis 50-100 strands a day. Blondes have some 150,000 hairs. Brunettes have about...