Extremely interesting article about how microorganisms can help increase levels of serotonin and may treat depression. I find this extremely interesting. Scientists have speculated for a long time that living in a cleaner environment has increased the incidence of allergies, but here is some real proof as to why. Occupational Therapists have used gardening for decades as a practical way to help people with depression, and now there is scientific proof that this is real.
The takeaway: Play in the dirt to improve your mood, and let your kids make mud pies to prevent allergies!