The Shampoo Myth

This article from Salon is the one exhibit I need to show to everyone I know that believes shampooing every alternate day is "good for health"! Hit the link for an informed, in-depth look at yet another example of human artifice.

I have a question, though: Can you actually use Sunshine Dish Detergent to shampoo? What agents, if any at all, should one use to clean out their hair? And how often? I'd ask a doctor, but I'd have to pay just for them to show me their coat lapels. So i f anyone knows, please reply to this post!