There are an increasing number of articles and studies linking mental health to the types of bacteria you have in your gut. I’m told that about 90% of the nervous system traffic between the gut and the brain is traveling UPWARDS…
Here is an article in the New Yorker on gut bacteria and anxiety:
http://www.newyorker.com/reporting/2012/10/22/121022fa_fact_specter
Also — a recent radio program on bacteria and mood:
http://www.radiolab.org/story/197242-gut-feelings/
This all raises the topic of how probiotics and diet may have a huge effect on mental health.
