Well, if you want it to be healthy then about every other day. but you CAN go a week without washing it. This would make it hard to brush out and oily.
around 3-5 days
2 DAYS
Washing your hair everyday may dry it out, depending on how oily it normally is. I usually will wash it 4 days a week, and that works for me. Depending on how your hair is, that may or may not work for you. If you do wash your hair everyday, you may want to using a moisturizing shampoo. So to answer your question, it might be good (or at least not bad for it) to go a day without washing it. That way the oils can get to the longer hairs, which will help with split ends.
No, I'm washing my hair.
You would starve to death before your hair falls out.
Washing your hair every day strips it of it's natural oils. This makes your scalp go in overdrive to make more, which makes your hair greasy. I don't think it accelerates hair loss, but it's still damaging to your hair.
Nope. The opposite is true, Washing your hair will get rid of the dandruff while not washing it will cause irritation and give you dandruff. However if you dont wash your hair for like months then the natural oils in your hair will go to a balanced state and you wont have dandruff and your hair will go really nice. But to achieve this takes months of uncomfortable dandruff hair. To avoid dandruff wash it about every three days. If you wash it too often then the shampoo will strip your hair of the natural oils so dont wash it everyday.
Every other day. 2-3 times a week. The longer you go without washing her hair, the better. You want the natural oils from the scalp to get to the tip of her hair, that's why they say brushing hair a hundred strokes makes it shiner. It gets the oils to the tips. If you wash her hair too much, you wash the oils away and she will eventually end up with dry/frizzy hair. If you don't wash your hair for too long, it becomes greasy.
it can go as long as you want it to :)
Your hair will not grow, but will appear longer. Depending on how curly/kinky and long your hair was before straightening...your hair could appear MUCH longer or barely longer at all. Try pulling your curls straight down as far as they go without hurting your scalp. That's about how long.
they can go pretty long without food but not to long without water
When washing bleach out of you hair you should do it just like you would when washing out shampoo. I would tell you that you should go to a salon to get it done.