After water, the most widely consumed drink on Earth.
"Tea is also a sort of spiritual refreshment, an elixir of clarity and wakeful tranquility... No pleasure is simpler, no luxury cheaper, no consciousness-altering agent more benign." - James Norwood Pratt. This plant has been so popular throughout history that it has played a role in major political events, such as the Opium Wars and the Boston Tea Party. It contains theanine which lifts mood and encourages alpha wave activity in the brain, plus some caffeine for energy.