I thought this internet article was interesting and wanted to "shair".

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Straight Talk about Hair
beauty@fashionindia.net
Supermodel Achla Sachdev highlights the most commonly asked questions about hair care to FashionIndia’s, Ranjit Rodricks.
Does hair really get used to shampoos? Is it a good idea to rotate between a few to keep your favourite shampoo effective?
Complete nonsense - there’s no scientific basis for this theory. Hair might not come out the same every time, but shampoo isn’t the culprit. Other things such as the weather, styling, scalp secretions etc are responsible. So if you find a product you like, stick with it.
But how exactly does one choose the right shampoo? There are so many available. and most people’s hair is a bit of everything - oily at the scalp, normal in the middle, dry at the ends. Which way does one go?
First of all, there is no such thing as "normal" - your "normal" isn’t my "normal". Categorising hair as normal, oily or dry is an old-fashioned notion. These days good shampoos are labeled based on what they actually do.
Think about what your hair needs - moisturising, volumizing, straightening, defrizzing - and choose a product meant to solve the related problem. You might have to experiment a little.
What kind of conditioner’s must one use? And how do you use a conditioner?
The prime purpose of conditioner is to detangle your tresses, which is very important so you don’t tug and break strands while brushing or combing.
Always use one, but STAY AWAY from BALSAM types - more modern ingredients do the job better. Also, you only need to apply conditioner to the length of hair - from about the ear level down. Skip the roots and scalp.
Is it okay to wash your hair in the evening after you come back from a hard day’s work, even though you washed it in the morning?
Washing hair twice daily is perfectly fine - lots of people now do, especially during the summer months when you sweat a lot. But you don’t have to. A little bit of witch hazel (buy it on your next trip abroad), applied along scalp with cotton balls will get rid of the greasiness.
What causes split ends? Is there any way to fix them?
Short of cutting them off - which is incidentally the best solution, you can temporarily bind them together with gel or a silicon based styling product. Just a tiny bit smoothed on the ends is all you need. Too much, and your hair will look oily.
Is it better to let your hair dry naturally rather than blow-dry it?
Poor blow dryers! They get blamed for a lot of things that aren’t their fault. Believe it or not, a hairbrush is far more damaging. The problem isn’t the implement itself, but with the way one uses it.
Most people keep the blower on long after their hair is dry, which totally saps moisture from the hair shafts. The best solution is to stop over styling.
What is the best kind of hair brushes to use?
Believe it or not, the cheap plastic type is much better for hair than the costly natural ones. The latter have too many bristles spaced close together, which tend to cause snags and breakage. I recommend sticking to nylon bristles in widely spaced rows. And don’t ever over brush - a sure way to damage your hair.
What about massaging the scalp to get circulation going - should one do it? And what about headstands?
Please massage! The best, most efficient method is to spend an extra minute in the shower. If you’re experiencing hair loss, a more elaborate and professional massage would help. And as for standing on your head, all it might do is give you a headache.
Can one’s diet affect the health of their hair?
Fruit and vegetables eaten regularly ensure energy availability to hair follicles at all times. Keep diet low in fat, salt and sugar and high in protein and carbohydrates. A multivitamin is a good idea too.
But all this only benefits new growth and since hair grows at the rate of only a half-inch per month, you wont notice any difference for at least three months.
Is there any reason why one should not colour their hair?
Hair colour is a big morale booster - so go ahead and be happy. However, dye and bleach can be harmful so be sure to deep-condition often.
What about styling products? Which products are the best for major fullness?
A category called volumizers does the job effectively. These usually come in a spray format. Concentrate application at the roots.
By Ranjit Rodricks / IndiaBytes
[Edited to remove web page text that had no relevance to the article]