>>Stress has the opposite effect.
>>The stress hormone cortisol depresses
>>the growth of nerve cells and the
>>connections between them.
Bad news for Starbucks fans...
Caffeine raises Cortisol levels.
http://www.google.com/search?hl=en&q=Caffeine+Cortisol+Levels&btnG=Search
“Caffeine raises cortisol levels.”
But I feel so much smarter when I drink it.