It is not unusual for Mrs Williams to find a line of frenzied Southern belles lined up outside the glass door of the Wycoff to buy the herbal drink.

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In Los Angeles the company is test-marketing an herbal tea drink called Carpe Diem that's supposed to boost the immune system and improve metabolism.

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Do you need to drink herbal tea or rest your chin on your fist to think critically?

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The key is the amount of liquids consumed, in addition to all those herbal teas which, while hard to drink, do actually seem to clean the body very well.

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We watched the drink become cloudy as the cold water reacted with the herbal oils -- a process known as "louching" -- then smelled the newly aromatic concoction again and finally, took a sip.

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