There's no place to discuss that article, but since you mention it... I seem to recall there was a thread a few months back that reported a reduction in shedding from washing in cold water. That certainly makes sense under the theory. Thanks for explaining!
As for stretching washes, I have found that when I massage the scalp, it makes it greasier. So now I don't touch it most of the week and only massage the night before a wash (I wash in the morning).
If my hair is getting unbearably greasy, I'll sometimes do a WO wash. It allows me to postpone a stronger wash by two to three days, usually. And, as many people in this thread, I finally managed to spread out washes only when I gave up shampoo. I use Indian herbs most of the time, with an occasional egg in-between. I think conditioner only attracts dirt to my hair, and it also seems to react with sebum to produce a horrible gunky mess. Obviously this varies from person to person; plenty of people manage to stretch out washes while using conventional products.
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