Thursday, May 21, 2009

Caffeine quick fact

What's the best way to consume caffeine for sustained cognitive performance?

Studies have concluded that caffeine is best consumed gradually, over the course of the time you want to be alert. In other words, you should aim for small and frequent doses of caffeine rather than a venti chug to start the day. This is because caffeine reaches the brain quickly and is then gradually removed by your system.

Here's the caffeine content of some popular drinks (in milligrams, per 6-oz servings):

1. Espresso: 100

2. Brewed coffee: 80-135

3. Instant coffee: 65-100

4. Tea, brewed: 40

5. Coca-cola: 23

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