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Extra bonus: it may help keep Alzheimer's away

From MSNBC...

For years we’ve been told that caffeinated coffee was bad for us. It’s unhealthy and addictive, doctors warned. But as vindication for all who stuck by their energizing elixir, a new study shows that guzzling caffeinated coffee may actually be good for our brains. In fact, it may help keep Alzheimer’s at bay.

Amazingly, the equivalent of four to five cups of caffeinated coffee every few days led to much improved memories in the Alzheimer’s mice.

Earlier research by Arendash and showed that caffeine could at least partially block the production of beta amyloid, the sticky protein that clogs the brains of Alzheimer’s patients. They also found that a substance called granulocyte-colony stimulating factor, or GCSF, sparked the production of new axons, the communication cables that link nerve cells together, as well as new nerve cells themselves. What’s really interesting is that caffeinated coffee -- but not decaf -- boosted the production of GCSF.