Here's an interesting bit of trivia I hadn't been aware of...
Caffeine is on the International Olympic Committee list of prohibited substances. Athletes who test positive for more than 12 micrograms of caffeine per milliliter of urine may be banned from the Olympic Games. This level may be reached after drinking about 5 cups of coffee.-- Jeremiah's Pick Coffee Newsletter (
http://www.jeremiahspick.com/)
You often hear about steroid abuse by athletes, but it turns out that even our friend caffeine is considered a substance that needs to be monitored and controlled. Back in 1962, the International Olympic Committee first enacted a restriction on caffeine, then dropped it from the list, and then restored the restrictions in 1984.
While it takes a fair amount of caffeine to exceed the limits, one enthusiastic Australian pentathlon competitor actually did become disqualified from the 1988 Seoul Olympics.
For more info about caffeine, check out this book...
The World of Caffeine: The Science and Culture of the World's Most Popular DrugBy Bennett Alan Weinberg, Bonnie K. Bealer
http://tinyurl.com/nhgcup(this link takes you to Google Books)