of our oldest stimu
Caffeine ranks as the world's most popular mood-
altering drug. This is partly due to its power to 10
O
decrease physical tiredness and increase alertness. It
is found not only in energy drinks, coffee, and tea, but
also in diet pills, pain relievers, and chocolate bars.
Many societies around the world have even created
rituals around the use of caffeine: afternoon tea in the
UK, the café culture of France, and the tea ceremony
2
in Japan.
u-mila
Yo he no