咖啡……



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送交者: wasguru 于 2005-12-09, 13:33:49:

回答: 喝茶还是喝咖啡好? 由 snap 于 2005-12-09, 12:20:42:

COFFEE FIX: REVEALED BY FUNCTIONAL MAGNETIC RESONANCE IMAGING

fMRI devices, which image the regions of activity in the brain, are making many important discoveries. None are more important to WN than an Austrian study reported this week at a meeting of the Radiological Society in Chicago. A significant increase in activity in the anterior cingulate cortex of the brain, which is responsible for short-term memory, peaked 20 minutes after consuming caffeine corresponding to two cups of coffee. The effect dissipates after 45 minutes. By my calculation, sipping coffee at the rate of 3 cups an hour should sustain the effect indefinitely. I just have to remember to keep sipping.


--Bob Park's What's New




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