Izmir Democracy University Health Sciences Congress, İzmir, Turkey, 12 - 13 November 2021, pp.1-2
Probiotics are live microorganisms that, when ingested in sufficient quantities, provide health benefits to the host. Probiotics have many health benefits in the human organism. Microbiota is an environment with many microorganisms and unique conditions, and probiotics are an important part of the human microbiota. Psychological symptoms such as daily stress level and emotional changes negatively affect the microbiota. Psychobiotics are defined as probiotics and prebiotics that affect bacteria-brain relationships. It is also known that 90% of serotonin, known as the happiness hormone, is produced by stimulating the digestive system. Recent research reveals that gut health is directly linked to the brain. Components such as GABA, 5-HT and DA are neurotransmitters produced by the effect of probiotics; it has positive effects in the treatment of some metabolic diseases, depressive disorder and anxiety. The aim of this study is to examine the positive effects of prebiotics and probiotics on the gut-brain axis and to review the interactions of microbiota and human health.