How do you keep your brain healthy naturally?

[dharani0022]

Your IQ can change over time. But [IQ] tests give you the same answer to a very substantial extent, even over a period of year. ... IQs are increasing three points per decade. In fact, there was an 18-point increase between 1947 and 2002.

 http://www.topketodietreviews.com/how-to-keep-your-brain-active/