Crux of More Evidence for a Gut-Brain Connection by Emily Deans:

  • In a mice experiment, mice that received lactobacillus bacteria showed less anxiety when put under stress, and their brains had higher GABA levels (a neurotransmitter associated with tranquility).
  • In some of the mice the researchers severed the vagus nerve that connects the gut and the brain. Those mice showed the same behavior and GABA levels as mice that did not receive lactobacillus bacteria.
  • People can get lactobacillus and other beneficial bacteria from fermented foods and probiotics. This may help people with anxiety disorders.
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