Introduction
~Considering that the human intestine is home to almost 100 trillion microorganisms including bacteria (Cryan, 2011), recent research has focused on the role of the microbiome in neurobiological functions such as stress, anxiety and coping responses.
~Focusing on animal models, previous findings indicate that modifications of the gut microbiota via antibiotics and certain probiotics alter the anxiety response via the vagus nerve & immune system mediation (MacQueen et al., 2017).
~Recently, the concept of Psychobiotics has been introduced to refer to the use of microbiota to positively influence mental health outcomes (Foster et al., 2017)