If, my fellow gardeners, you missed the news while you were out digging and planting, Science has recently discovered that gardening is addicting, or at least responsible for our generally cheerful moods, and even better, that gardening might make us smarter.
Stupid scientists. We already knew both those things, didn't we?
Follow-up experiments by Matthews and Jenks showed that the increased intelligence effect was temporary (diminished after several weeks) if the exposure to M. vaccae was withdrawn, suggesting that it is important for us to keep digging regularly and perhaps explaining why Northern Hemisphere gardeners are so depressed during winter months. Rebecca Kolls of Rebecca's Garden TV show fame was always telling us to "Keep those hands dirty!" wasn't she? If nothing else, we now have some evidence why gardeners should be better at getting around those corn mazes that crop up everywhere in the Fall.