That Morning Caffeine Fix? Consider It Health Care

Here's another plug for green tea -- and coffee, too.

A large Japanese study has found that sipping away on six cups of green tea each day may shrink type 2 diabetes risk, especially among women and overweight men.
Why?
Researchers aren't sure yet, but caffeine may play a role.
Even though green tea's not loaded with the stuff, other studies have found that the caffeine in coffee seems to guard against diabetes.