http://youarenotsosmart.com/2010... - Thomas Page

http://www.diffen.com/differe... , pstp bev med 3 -13 http://www.stashtea.com/caffein... , http://www.choiceorganicteas.com/caffein... , http://www.ico.org/caffein... , 5 bags 16oz 250mg+- 750mg/day Caffeine tolerance develops very quickly, especially among heavy coffee and energy drink consumers. Complete tolerance to the sleep disruption effects of caffeine develops after consuming 400 mg of caffeine 3 times a day for 7 days. Complete tolerance to subjective effects of caffeine was observed to develop after consuming 300 mg 3 times per day for 18 days, and possibly even earlier.[101] In another experiment, complete tolerance of caffeine was observed when the subject consumed 750–1200 mg per day while incomplete tolerance to caffeine has been observed in those that consume more average doses of caffeine.[102] , http://en.wikipedia.org/wiki... According to the US-based Waverly Health Center, three 8 oz cups of coffee (about 250 milligrams of caffeine) per day is considered an average or moderate amount of caffeine; ten 8 oz cups of coffee per day is considered an excessive intake of caffeine.[46] , http://www.energyfiend.com/the-caf... , http://steepster.com/ , http://www.nutraingredients.com/Researc... , http://www.ajcn.org/content... , 3 -19 http://www.wisebread.com/cheapes... , http://en.wikipedia.org/wiki... , 1 -5 It takes six hours to clear half the amount of caffeine you consume. With super-sized coffee cups, a large cup may contain more than 200 milligrams of caffeine. Here is the math. If you drink three large cups of coffee by 11am, you have consumed 600 milligrams of caffeine. Six hours later, at 5pm, 300mg of caffeine remain in your body. Six hours after that, at 11pm, 150mg remain. At 5am the next morning, 75mg of caffeine remain from the previous morning. http://www.kevinmd.com/blog... - Thomas Page

Yerba Mate http://en.wikipedia.org/wiki... Xanthines Mate contains three xanthines: caffeine, theobromine and theophylline, the main xanthine being caffeine. Caffeine content varies between 0.7% and 1.7% of dry weight[15] (compared with 0.4–9.0% for tea leaves, 2.5-7.6% in guarana, and up to 3.2% for ground coffee);[16] theobromine content varies from 0.3-0.9%; theophylline is present in small quantities, or can be completely absent.[17] A substance previously called "mateine" is a synonym for caffeine (like theine and guaranine).[18] Studies of mate, though very limited, have shown preliminary evidence that the mate xanthine cocktail is different from other plants containing caffeine most significantly in its effects on muscle tissue, as opposed to those on the central nervous system, which are similar to those of other natural stimulants. The three xanthines present in mate have been shown to have a relaxing effect on smooth muscle tissue, and a stimulating effect on myocardial (heart) tissue.[19] , http://en.wikipedia.org/wiki... - Thomas Page

How to Break Your Daily Caffeine Habit and Use Coffee Strategically http://gizmodo.com/5830874... , Buzz Author Stephen Braun on Programming Your Brain for Caffeine, Energy Drinks, and More http://lifehacker.com/5585840 , 12 -22 http://well.blogs.nytimes.com/2011... , 6 -30 Caffeine: A User’s Guide to Getting Optimally Wired http://scienceblogs.com/develop... http://www.bakadesuyo.com/advice-... - Thomas Page

Guayusa: The New Tea in Town http://www.medicinehunter.com/guayusa http://en.wikipedia.org/wiki... http://www.stashtea.com/info... http://www.stashtea.com/Guayusa... , 12 -29 Chinese tea farmers are switching to coffee http://www.latimes.com/busines... - Thomas Page

http://en.wikipedia.org/wiki... http://blogs.smithsonianmag.com/science... , 8 -25 http://wakeup-world.com/2013... , 11 -11 http://lifehacker.com/the-sci... http://lifehacker.com/355568... http://neurosciencedc.blogspot.com/2013... http://foodbeast.com/2013... 12 -16 http://www.nature.com/news... - Thomas Page

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tea-tuesdays-how-tea-sugar-reshaped-the-british-empire http://www.npr.org/blogs... - Thomas Page