As we’ve learned more about mental health over the years, the clearer it’s become that psychological states of mind can have biochemical origins. The connection between messaging chemicals called neurotransmitters and depression, for instance, is quite clear.
Neurotransmitters as well as hormones can be involved in the development of anxiety disorders, too. Less studied, but still significant, is the fact that some forms of depression and anxiety may be linked to oxidative stress. And one way that scientists have determined this is by discovering the presence of low glutathione (GSH) levels in people suffering from these psychological conditions.