Dirty Learning

The benefits of soil bacteria, part II. The same naturally occurring soil bacteria Mycobacterium vaccae that was mentioned a few posts ago is back in the news. This time, it looks as if it is linked to memory and behavior. Mice feed the bacteria were able to navigate a maze from memory almost twice as fast as mice that were not feed the bacteria. These effects were temporary, and decreased three weeks after the bacteria was removed from the mice's diet.

These results suggest two things:
1) Go somewhere outside where you can get your hands dirty (e.g. garden, park) to benefit your memory
2) Do it often

http://www.sciencedaily.com/releases/2010/05/100524143416.htm