Gut bacteria affect neurotransmitters from "summary" of The Mind-Gut Connection by Emeran Mayer
The trillions of bacteria living in our gut play a crucial role in our overall health. These bacteria communicate with our brain through the gut-brain axis, a bidirectional communication system that influences our emotions, behavior, and cognition. One of the ways in which gut bacteria exert their effects on the brain is by producing neurotransmitters. Neurotransmitters are chemical messengers that play a key role in regulating mood, behavior, and cognition. Many of the neurotransmitters produced in the gut, such as serotonin and gamma-aminobutyric acid (GABA), have profound effects on our mental health. Serotonin, for example, is often referred to as the "happy" neurotransmitter because it helps regulate mood and promote feelings of well-being. Studies have shown that gut bacteria can produce and regulate the levels of neurotransmitters in the gut, which in turn can influence brain function. For example, certain strains of gut bacteria have been shown to produce serotonin, while oth...
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