Our gut microbime could have a strong effect to our brain with their neurotransmitter production and metabolism. According to the reading for this week, those neurotransmitter hormones could trigger the change in our brain gene expression and resulting in mental health disease.
The communication of brain and gut microbes are bidirectional. Multiple studies show that brain could alter the release of hormones, which could affect the activities of microbes and what they release. Mental health could influence gut microbiota based off of factors like stress. a person under chronic stress undergoes chemical changes in the body like an increase in the hormone called cortisol. It could potentially alter gut microbiota populations since it’s long term impacts on the body include things like increased or decreased appetite, raised blood pressure, lowered immune response, and over or under sleeping.