Habitual tea drinkers begin to feel restless if they do not get their cup at the usual time. In my opinion, the usefulness of tea, if any, consists in the fact that it supplies a warm sweet drink which contains some milk. The same purpose may well be served by taking boiled hot water mixed with a little milk and sugar. Mahatma Gandhi in "A Key to Health"
“Tea might seem to be India’s best-loved beverage, but its popularity is actually the result of a careful propaganda effort. Like Christmas and diamonds, tea consumption is among the world’s more successful advertising campaigns.”