Psychology 2020A/B Study Guide - Jolt Cola, Kola Nut, Shennong
21 Mar 2013
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Most common psychoactive drugs : up to 80% of world population. Daily consumption: world(70mg) canada (210mg), us (240mg), sweden (425mg), uk(450mg) Tea: 50mg per cup, coffee: 100mg per cup (vary in order to how it"s made and type of bean) Caffeine: 1,3,7 methylxanthine (occur in over 60 species of plant) Xanthine: protects plants, in increasing the production of nt: octopamine -> insects: over excitation and death/ caffeine is only the xanthine found in coffee. Methylxanthine: coffee, tea, yerba mate (used like tea), guarana (used like coffee but twice amount of caffeine), kola nut, cacao. Opium wars of the mid 1800"s: british forced chinese to accept opium in payment for tea. Canada: first imported tea around 1716 (hudson"s bay company) A goat herder found the berries of the coffee. Religious tried to prohibit the coffee (same effect of the alcohol): murad iv and king charles ii. Coffee introduced to europe by the ottomans (trade)
